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89 resultados encontrados para: AUTOR: Montoya Gerardo, Pablo Jesús
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1.
- Artículo con arbitraje
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A comparison of sexual competitiveness and demographic traits of Anastrepha obliqua (Macquart) (Diptera: Tephritidae) among fruit-associated populations
Hernández Ortiz, Emilio (autor) ; Ruiz Montoya, Lorena (autora) (1964-) ; Toledo, Jorge (autor) ; Montoya Gerardo, Pablo Jesús (autor) ; Montoya Gerardo, Pablo Jesús (autor) ; Liedo Fernández, Pablo (autor) ; Aceituno Medina, Marysol (autora) ; Perales Rivera, Hugo Rafael (autor) ;
Disponible en línea
Contenido en: Bulletin of Entomological Research Vol. 109, no. 3 (June 2019), p. 333-341 ISSN: 1475-2670
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

The control of Anastrepha obliqua includes the sterilization of mass-reared insects grown in isolation in a constantly controlled environment. Through time, laboratory mass-reared colonies may produce flies with lower field performance. To recover the genetic variation and aptitude of mass-reared populations, wild insects are introduced into mass-reared colonies. Our aim in this study was to determine whether the host species from two localities influence the life history traits of A. obliqua. We collected flies as larvae from infested fruits of Spondias purpurea, S. mombin, Mangifera indica cv. 'piña', and M. indica cv. 'coche' from two localities in Chiapas, Mexico. There were significant differences in the mating competitiveness of males collected from mango cv. 'coche' compared with mass-reared males. There were no differences in the mating propensity between flies from the two localities, even in the number of matings, when weight was considered as a covariable. The mass-reared strain showed the earliest age at first oviposition. The locality affected the longevity and oviposition period, and these influenced the birth rate, intrinsic rate of increase, finite rate of population increase, mean generation time, and doubling time. According to the demographic parameters, the population of S. mombin would allow artificial colonization in less time, considering that it has a high reproduction rate starting at an early age. Even in the propensity test, it had the highest number of matings. However, males with greater sexual competitiveness and longevity for colonization corresponded to those collected from S. purpurea.


2.
- Artículo con arbitraje
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Does Beauveria bassiana (Hypocreales: Cordycipitaceae) affect the survival and fecundity of the parasitoid Coptera haywardi (Hymenoptera: Diapriidae)?
Martínez Barrera, Olga Yaneth (autora) ; Toledo, Jorge (autor) ; Liedo Fernández, Pablo (autor) ; Gómez Ruiz, Jaime (autor) ; Valle Mora, Javier Francisco (autor) ; Cancino Díaz, Jorge Luis (autor) ; Montoya Gerardo, Pablo Jesús (autor) ;
Contenido en: Environmental Entomology Vol. 48, no. 1 (February 2019), p. 156–162 ISSN: 0046-225X
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Resumen en español

Se estudió bajo condiciones de laboratorio el efecto del hongo entomopatógeno Beauveria bassiana (Balsamo) Vuillemin sobre el desarrollo de estados inmaduros, supervivencia y fecundidad de los adultos de Coptera haywardi (Oglobin). El hongo se aplicó como conidio seco sobre pupas de Anastrepha obliqua (Macquart) (Diptera: Tephritidae) parasitadas y en adultos de dos grupos de edad (1–4 d y 5–10 d). El hongo no ocasionó efectos negativos en el desarrollo de los estados inmaduros, dado que en la emergencia de adultos no hubo diferencias con el testigo. Ambos sexos y grupos de edades de los adultos fueron susceptibles al hongo. Los machos tuvieron una vida más corta que las hembras incluso en los individuos no tratados. La infección del hongo incrementó la mortalidad, pero no hubo efecto sobre la fecundidad durante los primeros 18 días de vida adulta, ya que la fecundidad neta fue de 26.7 y 26.3 parasitoides por hembra tratada y no tratada, respectivamente. Nuestros resultados sugieren que dada la baja susceptibilidad de la pupa parasitada y el no efecto sobre la fecundidad neta durante los primeros 18 días de vida adulta, es posible desarrollar estrategias de manejo usando estos dos enemigos naturales en el control biológico de A. obliqua.

Resumen en inglés

The effect of the entomopathogenic fungus Beauveria bassiana (Balsamo) Vuillemin on the development of immature stages, and survival and fecundity of Coptera haywardi (Oglobin) adults was studied under laboratory conditions. The fungus was applied as dry conidia on parasitized pupae of Anastrepha obliqua (Macquart) (Diptera: Tephritidae) and on parasitoid adults of two different age groups (1- to 4-d-old, and 5- to 10-d-old). The fungus caused no negative effects on the development of the immature stages, since there were no differences on the emergence of adults compared with the untreated control. Adults were susceptible to the fungus on both sexes and age groups. Males showed shorter lifespan than females, even in untreated individuals. Despite the increased adult mortality produced by the fungus there was no effect on fecundity during first 18 d of adult life, as the net fecundity was 26.7 and 26.3 parasitoids per female treated and untreated, respectively. Our results suggest that, given the low susceptibility of parasitized pupae and the no effect on fecundity during the first 18 d of adult life, it is possible to develop management strategies using these two natural enemies in the biological control against A. obliqua.


3.
Tesis - Doctorado
Resumen en español

La regulación de la población de una plaga se beneficia por la diversidad de sus enemigos naturales y el tipo de interacción intragremial que ocurra entre ellos. Se propuso conocer el tipo de interacción de Beauveria bassiana (Bb) y Coptera haywardi (Ch) que permita desarrollar una estrategia para la supresión de la mosca de la fruta Anastrepha obliqua (Ao). En laboratorio se determinó el efecto de Bb sobre el desarrollo, supervivencia y fecundidad de Ch, y se caracterizó la discriminación de Ch hacia pupas de Ao tratadas y no tratadas con Bb. En condiciones de campo semi-protegidas, se evaluó la interacción entre Ch y Bb cuando se usan secuencialmente para la supresión de A. obliqua. En laboratorio se inició con la aplicación de Bb en conidio seco sobre pupas de Ao parasitadas y en adultos de Ch de dos edades (1-4 d y 5-10 d). Bb no afectó el desarrollo de los estados inmaduros; en adultos, los machos fueron los más susceptibles, pero en las hembras, no afectó su fecundidad. La discriminación de Ch se caracterizó cuando a una hembra de Ch se expusieron 10 pupas de Ao sin tratar y tratadas con Bb en diferentes tiempos previos a la prueba y en tres diferentes opciones de elección, para observar su capacidad de discriminar pupas tratadas de las no tratadas. La interacción de Ch y Bb fue evaluada usando secuencialmente cada enemigo natural, se analizó mediante una tabla de vida de decremento múltiple que determinó que la mortalidad causada por Ch y Bb fue similar cuando sólo se liberó Ch. Se evidenció una interacción neutra, no sinérgica, ni aditiva, ni antagónica, ya que la presencia de Bb no afectó el control de Ch sobre Ao. Con ajustes en sus tiempos de aplicación y modos de uso, ambos agentes de biocontrol podrían usarse en campo.

Índice

Resumen
Introducción
Objetivos
Capítulo 1
Does Beauveria bassiana (Hypocreales: Cordycipitaceae) affect the survival and fecundity of the parasitoid Coptera haywardi (Hymenoptera: Diapriidae)?
Capítulo 2
Discriminación de Coptera haywardi (Hymenoptera: Diapriidae) hacia pupas de Anastrepha obliqua (Diptera: Tephritidae) tratadas con Beauveria bassiana (Hypocreales: Cordycipitaceae)
Capítulo 3
Interaction between Beauveria bassiana (Hypocreales: Cordycipitaceae) and Coptera haywardi (Hymenoptera: Diapriidae) for the management of Anastrepha obliqua (Diptera: Tephritidae)
Capítulo 4
Discusión general y conclusiones
Referencias
Anexos


4.
- Artículo con arbitraje
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Intrinsic competition between Diachasmimorpha longicaudata and three native species of parasitoids (Hymenoptera: Braconidae: Opiinae) of Anastrepha (Diptera: Tephritidae) fruit flies under laboratory conditions
Murillo Cuevas, Félix David (autor) ; Montoya Gerardo, Pablo Jesús (autor) ; Cabrera Mireles, Héctor (autor) ; Barrera, Juan F. (autor) ; Liedo Fernández, Pablo (autor) ;
Contenido en: Biocontrol Science and Technology Vol. 29, no. 8 (2019), p. 757-772 ISSN: 0958-3157
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Resumen en: Inglés |
Resumen en inglés

The effect of intrinsic competition between the exotic parasitoid Diachasmimorpha longicaudata (Ashmead) and the native species Doryctobracon crawfordi (Viereck), Utetes anastrephae (Viereck) and Opius hirtus (Fischer) (all Braconidae: Opiinae) was studied under laboratory conditions. Each native species and D. longicaudata acted as both a resident and an invader, and all species were introduced to the host simultaneously. Diachasmimorpha longicaudata was found to be the most competitive species because it achieved the highest parasitism percentage under all the experimental conditions, but it was also negatively affected by the presence and parasitic activity of the native parasitoids. Utetes anastrephae was the only species that maintained its parasitic rate when all species attacked the available hosts simultaneously. The emergence probability of a female D. longicaudata was positively associated with the increase in the number of scars on the cuticle of the host pupa, but this association was not observed for the native species. It was concluded that D. longicaudata is an intrinsic competitor that is superior to D. crawfordi, U. anastrephae and O. hirtus, whether acting as a resident or an invader, producing a female-biased sex ratio in all the evaluation conditions. Utetes anastrephae was the native species that was least affected by the competitive presence of D. longicaudata, which suggests that it could be used as a complementary biological control agent for Anastrepha fruit flies.


5.
Artículo
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Intrinsic competition between resident and invasive parasitoids (Hymenoptera: Braconidae) that attack the West Indian fruit fly Anastrepha obliqua under field conditions
Murillo Cuevas, Félix David ; Cabrera Mireles, Héctor (coaut.) ; Barrera, Juan F. (coaut.) ; Liedo Fernández, Pablo (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ;
Contenido en: Biocontrol Science and Technology Vol. 29, no. 3 (2019), p. 252–262 ISSN: 1360-0478
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Resumen en: Inglés |
Resumen en inglés

We evaluated under semi-field conditions the intrinsic competition between Diachasmimorpha longicaudata (Ashmead), as an invasive parasitoid, and Doryctobracon areolatus (Szépligeti) and Utetes anastrephae (Viereck) (all Hymenoptera: Braconidae) as resident parasitoids, as well as that between U. anastrephae as an invader and D. areolatus as a resident. The percentage of live D. areolatus larvae decreased by 39.8% and 29.4% following attack by D. longicaudata and U. anastrephae as invasive parasitoids, respectively. Likewise, the parasitism percentage of D. areolatus decreased by 31.5% and 60.8% under competition with the invasive parasitoids D. longicaudata and U. anastrephae, respectively. Parasitism by D. longicaudata decreased by 44.6% and 41.6% in the presence of the residents D. areolatus and U. anastrephae, respectively, while parasitism of U. anastrephae was only affected when this species was a resident. We concluded that D. areolatus is an inferior intrinsic competitor and that U. anastrephae resists the competitive presence of D. longicaudata.


6.
Libro
Moscas de la fruta: fundamentos y procedimientos para su manejo / Pablo Montoya, Jorge Toledo, Emilio Hernández, editores
Montoya Gerardo, Pablo Jesús (editor) ; Toledo, Jorge (editor) ; Hernández Ortiz, Emilio (editor) ;
Ciudad de México, México : S y G Editores , 2019
Clasificación: 632.774 / M6/2019
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
ECO020013942 (Disponible)
Disponibles para prestamo: 1

7.
- Artículo con arbitraje
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Suppression of Ceratitis capitata (Wied.) (Diptera: Tephritidae) populations in coffee in the Mexico–Guatemala border region through the augmentative releases of Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae)
Cancino Díaz, Jorge Luis (autor) ; Ruiz, Lía (coaut.) ; López, Elmer (autor) ; Aguilar, Emilio (autor) ; Gálvez, César (autor) ; Montoya Gerardo, Pablo Jesús (autor) ; Liedo Fernández, Pablo (autor) ;
Disponible en línea
Contenido en: Biocontrol Science and Technology Vol. 29, no. 8 (August 2019), p. 822-826 ISSN: 1360-0478
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Resumen en: Inglés |
Resumen en inglés

In Guatemalan coffee plantations, Ceratitis capitata populations were suppressed by the application of augmentative releases of parasitoids. These releases significantly increased parasitism of this fruit fly over paired no-release control areas. Integrated management plus biological control presented a significant reduction in the pest population. These results support the application of biological control in C. capitata management.


8.
Tesis - Maestría
*En proceso técnico. Solicítelo con la bibliotecaria de SIBE-Tapachula
Atributos biológicos de Doryctobracon areolatus, parasitoide de moscas de fruta del género Anastrepha emergidos de diapausa / Jassmin Cruz Bustos
Cruz Bustos, Jassmin ; Liedo Fernández, Pablo (director) ; Montoya Gerardo, Pablo Jesús (co-director) ; Pérez Lachaud, Gabriela (asesora) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2018
Clasificación: TE/632.774 / C7
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
ECO020013780 (Disponible)
Disponibles para prestamo: 1
Nota: En proceso técnico. Solicítelo con la bibliotecaria de SIBE-Tapachula
PDF
Índice | Resumen en: Español |
Resumen en español

Doryctobracon areolatus (Szépligeti) es un endoparasitoide solitario nativo de la región Neotropical que se caracteriza por presentar diapausa y por atacar estadios tempranos de moscas de la fruta del género Anastrepha. El objetivo de este trabajo fue comparar atributos biológicos como el tamaño, habilidad de vuelo, longevidad y fecundidad entre adultos emergidos de desarrollo directo (sin diapausa) y emergidos de diapausa en condiciones de laboratorio. Los parasitoides se obtuvieron a partir de una colonia de laboratorio criada en larvas de 2° instar de Anastrepha ludens, las muestras de puparios parasitados se clasificaron en dos cohortes de acuerdo con su tipo de desarrollo. El tiempo de desarrollo desde el huevo hasta el adulto varió de 18 a 32 días en los parasitoides de desarrollo directo, y de 70 a 278 días para los individuos con diapausa. Los puparios con parasitoides de desarrollo directo tuvieron mayor peso y los adultos son significativamente más grandes que aquellos que pasaron por diapausa. Los parasitoides hembra fueron de mayor tamaño que los machos, independientemente de su tipo de desarrollo. No hubo diferencias en la longevidad de los adultos, la resistencia a la inanición y la emergencia entre parasitoides de desarrollo directo o diapáusicos. La habilidad de vuelo y la fecundidad fueron mayores en la cohorte de desarrollo directo.

Las hembras que pasaron por diapausa y las de desarrollo directo iniciaron la oviposición desde el primer día de edad, sin embargo, la proporción de progenie hembra (58%) fue mayor en parasitoides de desarrollo directo, mientras que en parasitoides de diapausa la proporción de progenie macho fue mayor (68.7%). Ambas cohortes produjeron progenie que a su vez entró en diapausa, pero la cohorte de desarrollo directo produjo más (26.55%) que la cohorte de diapausa (9.12%). La edad materna en los parasitoides de desarrollo directo tuvo un efecto significativo en la proporción de descendientes que entraron en diapausa; en las hembras de desarrollo directo más longevas, de 26 a 34 días de edad, el 78.91% de su progenie entró en diapausa, mientras que las hembras de la cohorte diapáusica del mismo rango de edad no presentaron esta particularidad. La diapausa tiene un efecto sobre los atributos biológicos de D. areolatus. Las diferencias observadas contribuyen a comprender mejor las causas y las consecuencias de la diapausa en esta especie

Índice

Resumen y palabras clave
Introducción
Artículo científico
Conclusiones
Literatura citada
Anexos


9.
Tesis - Doctorado
Resumen en español

El objetivo del presente trabajo fue determinar el comportamiento de búsqueda y aceptación de hospedero, ante la presencia del superparasitismo y su repercusión en la longevidad y fecundidad de tres especies de parasitoides de larva, nativos del género Anastrepha. Se observó el comportamiento de oviposición y aceptación de hospedero bajo condiciones de laboratorio, para lo cual ofrecimos simultáneamente larvas de tercer estadio de Anastrepha ludens previamente parasitadas por conespecíficos y larvas sin parasitar. Se construyó un etograma para cada especie. Las pruebas se realizaron bajo tres condiciones: a) autosuperparasitismo hembras actuando en solitario; b) superparasitismo conespecífico, grupos de cinco hembras de la misma especie, y c) multiparasitismo, grupos de tres hembras, una de cada especie. Las especies nativas invirtieron mayor tiempo en el proceso de oviposición comparado con el tiempo reportado para las especies introducidas Diachasmimorpha longicaudata y D. tryoni. La preferencia por ovipositar en hospederos sanos se presentó en las tres especies, lo cual sugiere que la capacidad de discriminación de hospedero es una característica común en las especies. Se observó que el autosuperparasitismo es prácticamente nulo, y que el superparasitismo conespecífico fue más frecuente en Utetes anastrephae. En las pruebas de multiparasitismo, no se encontró diferencia significativa en la cantidad de adultos emergidos de las tres especies de parasitoides, sin embargo, cuando se disectaron las pupas de moscas, se observó una mayor cantidad de estados inmaduros de U. anastrephae. Las tres especies inmovilizaron a sus hospederos durante el proceso de oviposición, fueron capaces de identificar hospederos previamente parasitados cuando habían sido atacados por conespecíficos y el superparasitismo fue poco frecuente, lo que sugiere que el no superparasitar es una adaptación de las especies nativas.

Índice

Resumen
Capítulo 1
1. Introducción
2. Objetivos
3. Marco teórico
Capítulo 2
Host acceptance by three native parasitoid species (Hymenoptera: Braconidae) attacking larvae of the Mexican fruit fly, Anastrepha ludens (Diptera: Tephritidae)
Capítulo 3
Superparasitism and fitness parameters in three native parasitoid species of the Mexican fruit fly Anastrepha ludens (Diptera: Tephritidae)
Capítulo 4
Discusión general y conclusiones
Referencias
Anexos


10.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Effect of GF-120 (Spinosad) aerial sprays on colonies of the stingless bee Scaptotrigona mexicana (Hymenoptera: Apidae) and the honey bee (Hymenoptera: Apidae)
Gómez Escobar, Enoc ; Liedo Fernández, Pablo (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ; Méndez Villareal, Agustín (coaut.) ; Guzmán Díaz, Miguel Ángel (coaut.) ; Vandame, Rémy (coaut.) ; Sánchez Guillén, Daniel (coaut.) ;
Contenido en: Journal of Economic Entomology Vol. 111, no. 4 (August 2018), p. 1711-1715 ISSN: 0022-0493
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Despite their relevant contribution to the conservation of tropical ecosystems and crop productivity through pollination, the stingless bees (Apidae: Meliponini) can be considered a group of neglected species in the assessment of pesticides upon nontarget organisms. In this article, we evaluated the effect of aerial sprays of the spinosad-based fruit fly toxic bait GF-120 upon colonies of the stingless bee Scaptotrigona mexicana Guérin (Hymenoptera: Apidae), an economically important and abundant species in some landscapes of Mexico, located in mango orchards. Colonies of the honey bee Apis mellifera L. (Hymenoptera: Apidae) were used for comparison. Eight colonies (four of A. mellifera and four of S. mexicana ) were moved into each of two mango orchards, one was used as a control, with no insecticide application, and other received five weekly aerial sprays of GF-120. Foraging activity and strength of colonies of both species were measured nine times over the fruiting season, previous, during and after insecticide application. We did not find a significant difference in foraging activity and strength between exposed and control colonies of A. mellifera during the observation period. However, colonies of S. mexicana seemed to be affected by the exposure, as revealed by a reduction in colony strength. However, 1 yr later, with no insecticide applications, the colonies of both species were evaluated and found to be in good conditions. Our results showed that weekly aerial sprays of GF-120 are unlikely to generate acute poisoning in both species, even if in acute toxicity tests this product has been found to be highly active.


11.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Generic irradiation and hot water phytosanitary treatments for mango fruits cv. Ataulfo niño infested by anastrepha ludens and anastrepha obliqua (Diptera: Tephritidae)
Hernández Ortiz, Emilio (autor) ; Toledo, Jorge (autor) ; Gómez Simuta, Yeudiel (autor) ; Villarreal Fuentes, Juan Manuel (autor) ; Carrasco, Morfa (coaut.) ; Liedo Fernández, Pablo (autor) ; Hallman, Guy J. (coaut.) ; Montoya Gerardo, Pablo Jesús (autor) ;
Disponible en línea
Contenido en: Journal of Economic Entomology Vol. 111, no. 5 (September 2018), p. 2110–2119 ISSN: 0022-0493
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

The mango fruit cv. ‘Ataulfo’ niño is an underdeveloped fruit that has a split on the back and a pronounced peak, and among the current total supply of commercialized mangoes cv. ‘Ataulfo’, approximately 2% are classified as ‘Ataulfo’ niño, which are strongly infested by Anastrepha ludens (Loew) (Diptera: Tephritidae) and Anastrepha obliqua Mcquart. The objective of this study was to determine the tolerance to 150-Gy generic irradiation for fruit flies of the Anastrepha genus in comparison to the development of a hot water treatment (HWT) as phytosanitary treatments for mango fruits cv. ‘Ataulfo’ niño infested by A. ludens and A. obliqua. The results indicated that both treatments were effective; 150-Gy irradiation and HWT at 46.3–47°C for 51 min did not result in significant effects on the external and internal color, total sugar content, firmness, pH, or weight. The sensorial quality described by the appearance, flavor, color, and odor did not show any significant differences between treatments. For both A. ludens and A. obliqua, the third larval instar was the most thermotolerant. The efficacy test was conducted with an immersion time of 47 min. A. ludens did not survive, but for A. obliqua, three larvae out of a total of 6,890 did survive and pupate. Consequently, the confirmatory test consisted of submerging mangoes infested with thirdinstar A. ludens and A. obliqua in water at 46.3–47°C for 51 min. In total, 67,392 A. ludens and 22,086 A. obliqua larvae were treated, and no surviving larvae were observed.


12.
- Artículo con arbitraje
Host acceptance by three native braconid parasitoid species attacking larvae of the Mexican fruit fly, Anastrepha ludens (Diptera, Tephritidae)
Ayala Ayala, Amanda Pricila ; Pérez Lachaud, Gabriela (coaut.) ; Toledo, Jorge (coaut.) ; Liedo Fernández, Pablo (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ;
Contenido en: Journal of Hymenoptera Research No. 63 (April 2018), p. 33-49 ISSN: 1070–9428
PDF PDF
Resumen en: Inglés |
Resumen en inglés

We studied the oviposition and host acceptance behavior of three braconid parasitoid species native to Mexico, Doryctobracon crawfordi (Viereck), Opius hirtus (Fischer), and Utetes anastrephae (Viereck), with potential to be considered as biocontrol agents against tephritid fruit fly pests in the Neotropics. Third instar larvae of Anastrepha ludens (Loew), with and without previous parasitization by conspecifics, were simultaneously offered to females of each species, and the individual behavior was video recorded to construct oviposition flow diagrams. The patterns of foraging and host acceptance were similar in the studied species; all rejected mostly parasitized hosts suggesting that this strategy is common in the guild of larval parasitoids attacking Anastrepha spp. The complete searching and host acceptance process took 2.2 ± 0.1 min (mean ± SE) in D. crawfordi, 1.7 ± 0.1 s in U. anastrephae and 1.5 ± 0.1 s in O. hirtus. Notably, because of toxins injected by parasitoid females during oviposition, the parasitized hosts experienced a transient paralysis of variable duration. Hosts attacked by U. anastrephae remained immobile for the shortest time (12.5 ± 1 min) (mean±SE), followed by D. crawfordi (20.5 ± 3.4 min) and O. hirtus (24.1 ± 2 min). Our data revealed a notable discrimination ability in all three species, and that behavioral differences lay mainly in the time of parasitization and in the duration of paralysis experienced by attacked hosts. This suggest that the three species could be valuable as biocontrol agents, but additional studies are necessary to better understand the advantages and limitations of each one as natural enemies of fruit fly pests.


13.
Tesis - Doctorado
Relación entre caracteres de historia de vida y competitividad sexual de Anastrepha obliqua seleccionados durante la cría masiva / Emilio Hernández Ortiz
Hernández Ortiz, Emilio ; Ruiz Montoya, Lorena (directora) (1964-) ; Liedo Fernández, Pablo (asesor) ; Toledo, Jorge (asesor) ; Montoya Gerardo, Pablo Jesús (asesor) ; Perales Rivera, Hugo Rafael (asesor) ;
San Cristóbal de Las Casas, Chiapas, México : El Colegio de la Frontera Sur , 2018
Clasificación: TE/632.774097275 / H4
Bibliotecas: San Cristóbal
Cerrar
SIBE San Cristóbal
ECO010019573 (Disponible)
Disponibles para prestamo: 1

14.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Density estimation and optimal sterile-to-wild ratio to induce sterility in Anastrepha obliqua populations
Flores Breceda, Salvador (autor) ; Gómez Escobar, Enoc (autor) ; Liedo Fernández, Pablo (autor) ; Toledo, Jorge (autor) ; Montoya Gerardo, Pablo Jesús (autor) ;
Disponible en línea
Contenido en: Entomología Experimentalis et Applicata Vol. 164, no. 3 (2017), p. 284–290 ISSN: 1570-7458
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Resumen en: Inglés |
Resumen en inglés

We aimed to estimate population densities of Anastrepha obliqua (McQuart) (Diptera: Tephritidae) from trap data by releasing known numbers of sterile adults into mango orchards, and to determine sterility induction through the use of different sterile-to-wild ratios in field cages. Population densities were monitored with Multilure traps baited with hydrolysed protein (Captor 300) or BioLure during dry and rainy seasons. There was a positive relationship between the release density of sterile flies and the number of flies trapped per day (FTD index) for both attractants and in both seasons. Captor was the most effective lure. Traps baited with either attractant captured significantly fewer adult flies in the dry season than in the rainy season. A 10:1 sterile:wild ratio induced around 80% sterility in A. obliqua cohorts. No significant differences were observed when comparing the release of both males and females vs. only males. These findings can support area-wide integrated pest management programs for application of the sterile insect technique to suppress or eradicate this fruit fly pest.


15.
Tesis - Doctorado
Desarrollo de un modelo predictivo del crecimiento de poblaciones de mosca del Mediterráneo / Salvador Flores Breceda
Flores Breceda, Salvador (autor) ; Liedo Fernández, Pablo (director) ; Enkerlin Hoeflich, Walter Raúl (asesor) ; Ruiz Montoya, Lorena (asesora) (1964-) ; Montoya Gerardo, Pablo Jesús (asesor) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2017
Disponible en línea
Clasificación: TE/632.774097281 / F4
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
ECO020013670 (Disponible)
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Índice | Resumen en: Español |
Resumen en español

La mosca del Mediterráneo, Ceratitis capitata (Diptera, Tephritidae), es una plaga originaria de África con un alto potencial invasivo, que se encuentra establecida en Guatemala. Esta plaga presenta variaciones poblacionales asociadas a fenómenos climáticos globales que provocan cambios en las temperaturas, precipitaciones, los cuales tienen repercusión en la fenología de sus hospedantes. El poder predecir el nivel poblacional de la mosca representaría un apoyo en la programación de las actividades de control. En este trabajo se desarrolló un modelo predictivo de la fluctuación poblacional de C. capitata, y se generó información sobre la diversidad y el flujo genético entre las poblaciones de diferentes regiones de Guatemala. También se determinó la fluctuación poblacional de la especie en áreas donde no se realizan actividades de control, y la duración del ciclo biológico a diferentes altitudes. El análisis genético indicó una diversidad moderada (Ho = 0.28) y una diferenciación leve entre poblaciones. Los resultados de la estructura genética se agruparon a las poblaciones de la región occidente y a las poblaciones del oriente de Guatemala, lo cual fue concordante con el análisis filogenético.

La fluctuación poblacional se asoció con la disponibilidad de hospedantes, temperatura y precipitación. La densidad poblacional se incrementó en relación directa con la altitud y la abundancia del café y cítricos como naranja y mandarina. La duración del ciclo de vida fue regulada por la temperatura, y su duración fue estimada con precisión empleando los umbrales y requerimientos térmicos de los modelo de Tassan. En el modelo de estimación poblacional en cafetales o áreas marginales se emplearon como variables la temperatura media, mínima y máxima, precipitación, la densidad inicial y la presencia del hospedante primario. Este modelo se ajustó a los datos en un 70% durante el periodo de estudio, con una fluctuación cíclica de las poblaciones. Un aumento de temperatura en 0.2 °C representa cambios mas aparentes que con un 10% de incremento en la precipitación. Sin embargo, es necesario realizar validación del modelo en áreas infestadas bajo diferentes condiciones ambientales.

Índice

Resumen
Capítulo 1
Introducción
Capítulo 2
Genetic diversity and structure of Ceratitis capitata populations in Guatemala
Capítulo 3
Population Fluctuation of Ceratitis capitata (Diptera: Tephritidae) as a Function of Altitude in Eastern Guatemala
Capítulo 4
Desarrollo y sobrevivencia de Ceratitis capitata a diferentes altitudes en el Este de Guatemala: Comparación de dos modelos térmicos
Capítulo 5
Modelo para la predicción de poblaciones de Ceratitis capitata en áreas cafetaleras del Oriente de Guatemala
Capítulo 6
Discusión general
Anexos


16.
- Artículo con arbitraje
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Effect of Diachasmimorpha longicaudata releases on the native parasitoid guild attacking Anastrepha spp. larvae in disturbed zones of Chiapas, Mexico
Montoya Gerardo, Pablo Jesús ; López Romo, Silvia María Patricia (coaut.) ; Cruz Bustos, Jassmin (coaut.) ; López, Florida (coaut.) ; Cadena Gaitán, Carlos (coaut.) ; Cancino Díaz, Jorge Luis (coaut.) ; Liedo Fernández, Pablo (coaut.) ;
Contenido en: BioControl Vol. 62, no. 5 (October 2017), p. 581–593 ISSN: 1386-6141
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Resumen en: Inglés |
Resumen en inglés

We evaluated the effect of augmentative releases of Diachasmimorpha longicaudata (Ashmead), on the native parasitoid guild of Anastrepha spp. over a two year period in zones adjacent to mango commercial orchards in Chiapas, Mexico. We chose two 15 ha working zones, 15 km apart, harbouring fruit fly hosts of varying densities without chemical control. In 2013, parasitoids were released in zone “A” while zone “B” served as control. In 2014 zones were exchanged. As expected, releases of D. longicaudata significantly increased total parasitism, from around 0.5–5% to over 22%, but annual parasitism by native parasitoids was only significantly affected in zone “A”. The numbers of native parasitoids were higher in zone “A” in both years, and diversity (H′) was not affected by D. longicaudata releases in both zones. Our results suggest that releases of D. longicaudata affect the relative abundance but not the species richness of native parasitoids.


17.
Artículo
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Effect of Temperature on the Release Rate of Trimedlure under Laboratory and Field Cage Conditions
Flores Breceda, Salvador (coaut.) ; Campos, Sergio E. (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ; Liedo Fernández, Pablo (coaut.) ; Malo Rivera, Edi Álvaro (coaut.) ;
Contenido en: Journal of Economic Entomology Vol. 110, no. 5 (October 2017), p. 2062-2067 ISSN: 0022-0493
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Resumen en: Inglés |
Resumen en inglés

The Mediterranean fruit fly, Ceratitis capitata (Wiedemann), is an exotic pest of economic importance in several parts of the world. Systems for monitoring this pest employ mainly trimedlure (TML), a parapheromone specifically for males. Understanding the performance of these attractants under different conditions should contribute to better design trapping networks, better field data interpretation, and a more efficient use of the products. In this study, the release rate of TML was determined at 15, 25, and 35 °C, through plug weight loss over 80 d in a bioclimatic chamber. The attraction of TML of different ages was determined in field cage tests located in a mango orchard. Our results showed a direct relationship between TML release rate and temperature. Attraction was dependent on release rate. We found that TML storage for >4 yr at 27 °C affected the quantity of the active ingredient available for release. The results are discussed in terms of the effects of these conditions on the effi- ciency of trapping networks used for the detection of this pest and quality assurance for detection programs.


18.
- Artículo con arbitraje
PDF PDF
Resumen en: Español | Inglés |
Resumen en español

El uso de cebos con insecticidas es uno de los métodos más comunes y eficaces en diversas regiones del mundo para el control de moscas de la fruta (Diptera: Tephritidae). Sin embargo, esta estrategia ha sido cuestionada debido a la contaminación ambiental y los efectos no deseados en organismos no blanco. El uso de dispositivos de atracción y muerte llamados estaciones cebo (BS) o el trampeo masivo pueden ser métodos de control alternativos para superar estos impactos ecológicos. En este estudio se evaluaron diferentes dispositivos usados para el trampeo masivo y atrayentes en comparación con aspersiones terrestres de insecticidas cebo para el control de Anastrepha obliqua (Macquart) y Anastrepha ludens (Loew) (Diptera: Tephritidae) en huertos de mango en Chiapas, México. Se encontró que el contenedor de plástico de 2 litros cebado con Cera Trap®, proteína hidrolizada enzimáticamente, a una densidad de 25 trampas por hectárea fue el más eficaz en la reducción de las poblaciones de mosca de la fruta. Nuestros resultados indican que el uso de estaciones cebo puede ser tan eficaz como las aspersiones terrestres de cebo tóxico, pero superior bajo condiciones de lluvia. Lo anterior resulta de gran ventaja teniendo en cuenta las condiciones climáticas tropicales de varias zonas de producción de mango en el mundo.

Resumen en inglés

The use of insecticide baits is one of the most common and efficient methods worldwide to control fruit flies (Diptera: Tephritidae). However, this strategy has commonly been associated with environmental contamination and undesirable effects on non-target organisms. The use of lure-and-kill devices (bait stations) or mass trapping could be alternative control methods to overcome these ecological concerns. In this study, we evaluated several mass trapping devices and attractants in comparison with ground-applied insecticide bait sprays for the control of Anastrepha obliqua (Macquart) and Anastrepha ludens (Loew) (Diptera: Tephritidae) in mango orchards in Chiapas, Mexico. Among the bait stations evaluated, we found that a wide-mouth 2 L plastic bottle baited with Cera Trap®, an enzymatic hydrolyzed protein, and used at the density of 25 traps per ha was most efficient at reducing the fruit fly populations. Our results showed that bait stations to control fruit flies, in addition to using less insecticide, were as effective as ground sprays and were superior under rainy conditions. These properties represent a great advantage considering the tropical conditions in several mango production zones around the world.


19.
- Artículo con arbitraje
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Fitness of mass-reared males of Anastrepha obliqua (Diptera: Tephritidae) resulting from mating competition tests in field cages
Hernández Ortiz, Emilio ; Liedo Fernández, Pablo (coaut.) ; Toledo, Jorge (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ; Perales Rivera, Hugo Rafael (coaut.) ; Ruiz Montoya, Lorena (coaut.) (1964-) ;
Contenido en: Journal of Economic Entomology Vol. 110, no. 6 (December 2017), p. 2325-2333 ISSN: 1938-291X
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Resumen en: Inglés |
Resumen en inglés

The sterile insect technique uses males that have been mass-reared in a controlled environment. The insects, once released in the field, must compete to mate. However, the mass-rearing condition supposes a loss of fitness that will be noticeable by wild females. To compare the fitness of wild males and mass-reared males, three competition settings were established. In setting 1, wild males, mass-reared males and wild females were released in field cages. In setting 2, wild females and wild males were released without competition, and in setting 3, mass-reared males and mass-reared females were also released without competition. Male fitness was based on their mating success, fecundity, weight and longevity. The fitness of the females was measured based on weight and several demographic parameters. The highest percentage of mating was between wild males and wild females between 0800 and 0900 h in the competition condition, while the mass-reared males started one hour later. The successful wild males weighed more and showed longer mating times, greater longevity and a higher number of matings than the mass-reared males. Although the mass-reared males showed the lowest percentage of matings, their fecundity when mating with wild females indicated a high fitness. Since the survival and fecundity of wild females that mated with mass-reared males decreased to become similar to those of mass-reared females that mated with mass-reared males, females seem to be influenced by the type of male (wild or mass-reared).


20.
Tesis - Maestría
Infección de adultos de Anastrepha ludens y A. obliqua con diseminadores de conidios de Beauveria bassiana en campo / Sergio Eduardo Campos Carbajal
Campos Carbajal, Sergio Eduardo ; Toledo, Jorge (tutor) ; Montoya Gerardo, Pablo Jesús (asesor) ; Gómez Ruiz, Jaime (asesor) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2017
Clasificación: TE/632.774 / C36
Bibliotecas: Tapachula
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SIBE Tapachula
ECO020013672 (Disponible)
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Índice

I Introducción
II Capítulo del artículo
III Discusión
IV Conclusiones
V Literatura Citada


Resumen en: Inglés |
Resumen en inglés

The Mediterranean fruit fly, Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), is considered one of the most important pests worldwide because of its direct damage to fruit and vegetable production, and restrictions imposed to commercialization of horticultural commodities by countries free of the pest. It was introduced to Brazil in 1901 and to Costa Rica in 1955, from where it spread across the Central American region, reaching Guatemala and Mexico in 1976 and 1977, respectively. In response, the governments of Guatemala, Mexico, and the USA joined efforts to (1) contain further northward spread of the pest, (2) eradicate it from the areas it had invaded in southernMexico, and (3) in the longer termeradicate it from Guatemala and eventually from the rest of Central America. To this effect, cooperative agreements were subscribed between the three countries and also between the USA and Belize. This allowed regional cooperation against the Mediterranean fruit fly and the creation of the Moscamed Programme. The programme was the first area-wide large-scale application of the sterile insect technique (SIT) against this pest. By 1982, the Programme had achieved its first two objectives with the containment of the northward advance of the pest, and its eradication from the areas it had invaded in the states of Chiapas and Oaxaca in southern Mexico. Furthermore, by 1985 the Mediterranean fruit fly had been eradicated from areas in Guatemala located at the border with Mexico. Since then, the programme has had years with significant territorial advances in the eradication of the pest from areas within Guatemala, combined with years when it had setbacks resulting in losses of the territorial gains. Nevertheless, during 4 decades, the programme has effectively served as an effective containment barrier maintaining the Mediterranean fruit fly-free status of Belize, Mexico, and the USA.

It has also protected and increased the Mediterranean fruit fly-free areas in Guatemala. As a result, it has protected the assets of horticultural producers and contributed during this period to the development of multibillion dollar export industries in these countries. This paper provides an historical review of the programme and describes briefly how technological innovations and decision-making tools have contributed to programme efficiency. It also discusses how non-technical and external factors have limited the eradication process and further programme advance within the Central American region.


22.
- Artículo con arbitraje
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Novel insecticides and bait stations for the control of Anastrepha fruit flies in mango orchards
Díaz Fleischer, Francisco ; Pérez Staples, Diana (coaut.) ; Cabrera Mireles, Héctor (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ; Liedo Fernández, Pablo (coaut.) ;
Contenido en: Journal of Pest Science Vol. 90, no. 3 (June 2017), p. 865–872 ISSN: 1612-4766
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Resumen en: Inglés |
Resumen en inglés

Agricultural pests represent a limiting factor for safety food production. Environmental friendly alternatives to the use of synthetic pesticides are required. Here we evaluated the effect of a novel insecticide and a new designed bait station using Anastrepha ludens sterile flies in release– recapture tests in mango orchards. Seven treatments were distributed in 35 plots of one hectare each in a five blocks arrangement. Spinosad (GF-120), malathion and abamectin, Fly-catch bait station (FC): baited with 95% water, 4% hydrolyzed protein (Captor 300) and 1% malathion, 1.5 L plastic bottle bait station (PB) baited with 250 mL of CeraTrap, Papaya Leaf Mimic station: Sprayed with GF- 120, untreated plots (control) were used as treatments. Half of the trees of each plot received the treatment. Approximately 5000 flies per plot were released at 15-day intervals, in four consecutive replicates. For monitoring, two Multilure traps/plot baited with BioLure were revised weekly. Wild populations of A. serpentina and A. obliqua were censored. Abamectin sprays and the FC induced the highest reduction in A. ludens captures (up to 50% with respect to the untreated plots). No clear effects were observed in the wild populations, since more flies were captured in some treatments than in the untreated plots, but here the initial population density and distribution was unknown. Traps in the FC treatment captured less nontarget insects than other treatments. Overall, the results indicate that the abamectin and the attract-and-kill bait stations, especially the FC, can be useful alternatives for the control of Anastrepha flies.


23.
Artículo
*Solicítelo con su bibliotecario/a
Pathogenicity of three formulations of Beauveria bassiana and efficacy of autoinoculation devices and sterile fruit fly males for dissemination of conidia for the control of Ceratitis capitata
Toledo, Jorge ; Flores Breceda, Salvador (coaut.) ; Campos, Sergio (coaut.) ; Villaseñor Cortés, Antonio (coaut.) ; Enkerlin Hoeflich, Walther Raúl (coaut.) ; Liedo Fernández, Pablo (coaut.) ; Valle, Álvaro (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ;
Contenido en: Entomologia Experimentalis et Applicata Vol. 164, no. 3 (September 2017), p. 340–349 ISSN: 1570-7458
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Resumen en: Inglés |
Resumen en inglés

This study reports the pathogenicity of three formulations of Beauveria bassiana (Balsamo) Vuillemin (Hypocreales) – Bb-ET, GHA, and Bb-AES – and their application in panel-type and cylinder-type autoinoculation devices, and using sterile males as vectors for the control of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) in coffee-producing areas of the Central Highlands of Guatemala. Using sterile adults of C. capitata under laboratory bioassays, mean lethal concentrations (LC50) of 1.4 9 107, 2.4 9 106, and 8.2 9 105 conidia ml-¹, and median survival times of 4.1 0.1, 4.2 0.1, and 3.8 0.1 days, were recorded for the strains GHA, Bb-AES, and Bb-ET, respectively. These values indicate that the three strains were sufficiently pathogenic and that their period of biological activity was considered adequate for using sterile flies as vectors of the inoculum. Observed percentages of sporulated wild C. capitata flies were 57.3, 44.7, and 44.3% for sterile fly vectors, panel devices, and cylinder devices, respectively. The total population reduction at the end of the study period was over 90% for the three treatments. Our results show that sterile males used as vectors or disseminator devices may represent a new control method for area-wide integrated management of Mediterranean fruit flies. The potential of this new approach and its integration with other control methods, including the sterile insect technique, is discussed.


24.
Artículo
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The effects of a modified hot water treatment on Anastrepha ludens (Diptera: Tephritidae)-infested mango
Hernández Ortiz, Emilio (coaut.) ; Aceituno Medina, Marysol (coaut.) ; Toledo, Jorge (coaut.) ; Bravo, Bigail (coaut.) ; Caro Corrales, José (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ; Mangan, Robert (coaut.) ;
Contenido en: Journal of Economic Entomology Vol. 110, no. 2 (April 2017), p. 407-415 ISSN: 0022-0493
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Resumen en: Inglés |
Resumen en inglés

The Mexican fruit fly, Anastrepha ludens (Loew), is a quarantine pest in mango ( Mangifera indica L.) that can be controlled by using a hot water treatment (HWT). This treatment is normally followed by a 30-min hydrocooling (HYC) process that reduces the negative effects that the treatment has on fruit quality. However, if hot watertreated fruits are immediately immersed in water at 21°C, the survival rate of third-instar A. ludens may be increased. The current approved treatment protocol states that if HYC is used, then treated fruit should undergo an additional 10-min HWT or on platform for 30 min before HYC. We aimed to determine the efficacy of HWT without an additional 10-min treatment before being subjected to HYC, while taking into consideration that the most important conditions are the temperature of the fruit core throughout treatment and the type of infestation, either oviposition or inoculation. Two experimental tests were conducted. Our first aim was to determine the effectiveness of HWT followed by HYC using three varieties and different size classes of mangoes (‘Ataulfo’ 200–375 and 401–570g; ‘Tommy Atkins’ 401–500 and 501–700g; ‘Kent’ 401–500g). The four treatment combinations used to test HWT and immediate HYC at 21°C were1) HWT,2) HWT/HYC,3) HWT + 10 min/HYC, and 4) HWT/30 min on platform/HYC; an independent experiment was used for each variety. The second aim was to validate the HWT/HYC combination by performing confirmatory tests in commercial packing houses. The results showed that as long as the mango core temperature reached 45°C during the HWT, it was not necessary to add the 10-min treatment to the HWT before HYC at 21°C was applied. To ensure that the larvae are subjected to the HWT treatment for sufficient time to be lethal, the temperature of the fruit core throughout the treatment must be recorded.


25.
Tesis - Doctorado
Competencia interespecífica asociada al control biológico por aumento de moscas del género Anastrepha (Diptera: Tephritidae) / Félix David Murillo Cuevas
Murillo Cuevas, Félix David ; Liedo Fernández, Pablo (director) ; Montoya Gerardo, Pablo Jesús (co-director) ; Barrera, Juan F. (asesor) ; Cabrera Mireles, Héctor (asesor) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2016
Clasificación: TE/632.774097262 / M8
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ECO040006283 (Disponible)
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ECO030008484 (Disponible)
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ECO010005335 (Disponible)
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ECO020013429 (Disponible)
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ECO050006047 (Disponible)
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Índice | Resumen en: Español |
Resumen en español

La presente investigación tuvo como objetivo determinar si el control biológico por aumento genera competencia interespecífica con parasitoides nativos residentes en las áreas de liberación y su impacto. Se plantearon dos objetivos particulares: 1) determinar el efecto de atributos intrínsecos en las interacciones entre cuatro especies de parasitoides nativos y Diachasmimorpha longicaudata, y 2) determinar el efecto de las liberaciones aumentativas de D. longicaudata sobre el parasitismo natural. Para el primer objetivo se presentan cuatro capítulos: I) competencia intrínseca entre D. longicaudata y tres especies de parasitoides nativos en laboratorio; II) comparación de la morfología de larvas de primer instar de cuatro especies de parasitoides nativos y D. longicaudata; III) determinación de la capacidad de Doryctobracon areolatus para parasitar huevos y larvas recién eclosionadas de Anastrepha obliqua; y IV) competencia intrínseca entre D. longicaudata como invasor y dos especies nativas como residentes en frutos infestados expuestos en jaulas de campo. Los resultados demostraron que la morfología de la larva de Utetes anastrephae compensa la competencia con D. longicaudata, y que la especie Doryctobracon areolatus tiene la capacidad de parasitar embriones en el interior de huevos y larvas recién eclosionadas de A. obliqua, lo cual puede representar una ventaja al competir con D. longicaudata. Se confirmó que las especies nativas cuando son residentes defienden su recurso satisfactoriamente contra D. longicaudata. Para el segundo objetivo particular se determinó del efecto de las liberaciones por aumento de D. longicaudata sobre Anastrepha spp. y sobre el parasitismo natural (capítulo V), cuyo resultado permitió comprobar que las liberaciones por aumento de D. longicaudata complementan el parasitismo natural y reducen de manera significativa la infestación de frutos por A. obliqua.

Índice

Resumen
Introducción
Capítulo I
Competencia intrínseca entre Diachasmimorpha longicaudata y tres especies de parasitoides nativos (Hymenoptera: Braconidae: Opiinae) de moscas de la fruta Anastrepha (Diptera: Tephritidae)
Capítulo II
First instar larvae morphology of Opiinae (Hymenoptera: Braconidae) parasitoids of Anastrepha (Diptera: Tephritidae) fruit flies. Implications for interspecific competition
Capítulo III
Doryctobracon areolatus (Hymenoptera, Braconidae) a parasitoid of early developmental stages of Anastrepha obliqua (Diptera, Tephritidae)
Capítulo IV
Competencia intrínseca entre parasitoides residentes e invasores que atacan a la mosca de la fruta de las Indias Occidentales Anastrepha obliqua (Diptera: Tephritidae)
Capítulo V
Liberaciones por aumento de Diachasmimorpha longicaudata (Hymenoptera: Braconidae): efecto sobre las poblaciones de Anastrepha spp. (Diptera: Tephritidae) y su parasitismo natural
Conclusiones Finales
Literatura Citada
Anexos


26.
- Artículo con arbitraje
Resumen en: Inglés |
Resumen en inglés

The morphology of the first instars of the Opiinae braconids Diachasmimorpha longicaudata, Doryctobracon areolatus, Doryctobracon crawfordi, Utetes anastrephae and Opius hirtus (the first is exotic, and the others are natives to Mexico), parasitoids of Anastrepha fruit flies, are described and compared. The possible implications on interspecific competition among these species are discussed. The most significant adaptations found were: (1) the mouth apparatus, where the large mandibles and fang-shaped maxillary lobes present in D. longicaudata and U. anastrephae larvae were absent in O. hirtus, D. areolatus and D. crawfordi larvae, and (2) the degree of mobility for exploration and escape, such as the lateral and caudal appendages that were only present in D. longicaudata (ventrolateral appendages in the base of the head capsule), U. anastrephae (caudal lobe with two appendages) and D. areolatus (caudal lobe with a round apex with a globular shape). The first instar larvae of the species D. longicaudata show morphological adaptations that apparently confer competitive advantages against the larvae of D. areolatus, D. crawfordi and O. hirtus. However, the first instar larvae of U. anastrephae show larger mandibles, an adaptation that could enable this species to resist competition from D. longicaudata.


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Índice

Introducción general
1 Cambio climático: contexto histórico, paleoecológico y paleoclimático. Tendencias actuales y perspectivas
2 Impacto de las actividades humanas en la biodiversidad y en los ecosistemas
3 Cambios en la biodiversidad y sus consecuencias en el funcionamiento de los ecosistemas y sus servicios
4 Los servicios ecosistémicos
5 Herramientas y estrategias para el estudio y la conservación de los ecosistemas y su biodiversidad
Conclusiones generales


Resumen en: Inglés |
Resumen en inglés

To determine the natural parasitism in fruit fly populations in disturbed areas adjacent to commercial mango orchards in the states of Chiapas and Veracruz, Mexico, we recorded over one year the fruit fly–host associations, fly infestation, and parasitism rates in backyard orchards and patches of native vegetation. We also investigated the relationship between fruit size, level of larval infestation, and percent of parasitism, and attempted to determine the presence of superparasitism. The most recurrent species in trap catches was Anastrepha obliqua (Macquart), followed by Anastrepha ludens (Loew), in both study zones. The fruit infestation rates were higher in Chiapas than in Veracruz, with A. obliqua again being the most conspicuous species emerging from collected fruits. The diversity of parasitoids species attacking fruit fly larvae was greater in Chiapas, with a predominance of Doryctobracon areolatus (Sze´ pligeti) in both sites, although the exotic Diachasmimorpha longicaudata (Ashmead) was well established in Chiapas. Fruit size was positively correlated with the number of larvae per fruit, but this relationship was not observed in the level of parasitism. The number of oviposition scars was not related to the number of immature parasitoids inside the pupa of D. areolatus emerging from plum fruits. Mass releases of Di. longicaudata seem not to affect the presence or prevalence of the native species. Our findings open new research scenarios on the role and impact of native parasitoid species attacking Anastrepha flies that can contribute to the development of sound strategies for using these species in projects for augmentative biological control.


29.
- Artículo con arbitraje
*Solicítelo con su bibliotecario/a
Population fluctuation of Ceratitis capitata (Diptera: Tephritidae) as a function of altitude in eastern Guatemala
Flores Breceda, Salvador (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ; Ruiz Montoya, Lorena (coaut.) (1964-) ; Villaseñor, A. (coaut.) ; Valle, A. (coaut.) ; Enkerlin Hoeflich, Walther Raúl (coaut.) ; Liedo Fernández, Pablo (coaut.) ;
Contenido en: Environmental Entomology Vol. 45, no. 4 (August 2016), p. 802-811 ISSN: 1938-2936
Nota: Solicítelo con su bibliotecario/a
Resumen en: Inglés |
Resumen en inglés

Population fluctuations of Ceratitis capitata (Wiedemann) were evaluated over a period of 12 mo in four altitudinal strata (400–750, 750–1,100, 1,100–1,450, and 1,450–1,800 meters above sea level, masl) in Eastern Guatemala. Within each altitudinal range, sampling plots were established in coffee plantations and adjacent areas, in which Jackson traps were set and baited with Trimedlure. Coffee berries and other host fruits were collected. Population density was lowest at the 400–750 masl stratum and highest at 1,450–1,800 masl. At every altitudinal range, the fluctuations of the pest were associated mainly with the availability of ripe coffee berries as a primary host. From 750–1,450 masl, the pest was also associated with the availability of sweet orange and mandarins in commercial and backyard orchards. The highest densities of the pest were recorded in the dry season. Citrus were the main alternate host where ripe coffee berries were not available. This knowledge on population dynamics of C. capitata will contribute to develop more effective area-wide pest management strategies including the use of sterile insects, natural enemies, and bait sprays.


30.
- Artículo con arbitraje
PDF
Resumen en: Inglés |
Resumen en inglés

Natural parasitism of Doryctobracon areolatus (Szépligeti) (Hymenoptera: Braconidae) on various development stages of Anastrepha obliqua (Macquart) (Diptera: Tephritidae) attacking Spondias mombin L. fruits was studied under field conditions. We collected 120 fruits of S. mombin from which we got 495 A. obliqua larvae of different instars. A total of 88% of these larvae were parasitized. Within the parasitized cohort, the first-instar of D. areolatus was frequently detected in all 3 larval stages (L1 = 94.3%, L2 = 98.1%, and L3 = 100%), and the rest (i.e., L1 = 5.7%, L2 = 1.8%) corresponded to the presence of eggs. In fruits with controlled infestation and cage-induced parasitism under field conditions, D. areolatus oviposited in mature eggs and recently hatched larvae of A. obliqua with comparable frequencies. Seven preimaginal stages of D. areolatus were observed during their development, which was completed in 27 days. It is concluded that D. areolatus has the capacity to oviposit in embryo eggs and neonate larvae of A. obliqua and that its first-instar larvae (with three distinct sizes) are capable of synchronizing their development with the development of the host larvae. This finding represents the first report of a native parasitoid attacking eggs or neonate larvae of a tephritid in the Neotropics. The implications of this finding are discussed within the context of the competitive interactions of this species with other parasitoid species under sympatric conditions, as well as the relevance for developing laboratory rearing methods for biological control purposes.


31.
- Artículo con arbitraje
Resumen en: Inglés |
Resumen en inglés

BACKGROUND: The field activity of the mixtures of liquid baits and insecticides used in the control of tephritid pests is normally short, both when they are sprayed or when used in trapping or in attract-and-kill devices. A new lure-and-kill device based on Torricelli’s barometer principle was tested as a long-lasting dispenser for two liquid hydrolysed protein baits mixed with insecticide, GF-120 and Captor 300+malathion, against Anastrepha ludens (Loew) flies of laboratory origin. The dispensers were kept under field conditions for 42 days. Laboratory bioassays for insecticide properties and field cage studies for attraction capacity were carried out on a weekly basis after 22 and 42 days of weathering respectively. RESULTS: Our results demonstrated that both mixtures of insecticides and phagostimulant baits killed up to 80% of the tested flies when they were 42 days old. The attraction capacity of both weathering-exposed mixtures was even higher than fresh insecticidal–bait mixtures after the same period. CONCLUSION: The device is efficient when used with the liquid baits currently employed in the control of tephritid flies. It also offers a high potential for combining visual stimuli, such as shape and colour, and for improving trapping and bait station designs. Incorporating this newdevice in trapping and attract-and-kill methods could help to reduce the frequency of servicing of the traps and bait stations and lower their costs.


32.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
Behavioral response of two species of stingless bees and the honey bee (Hymenoptera: Apidae) to GF-120
Gómez Escobar, Enoc ; Liedo Fernández, Pablo (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ; Vandame, Rémy (coaut.) ; Sánchez Guillén, Daniel (coaut.) ;
Contenido en: Journal of Economic Entomology Vol. 107, no. 4 (August 2014), p. 1447-1449 ISSN: 0022-0493
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
53588-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

We present the results of evaluating the response of three species of bees, Trigona fulviventris (Guérin), Scaptotrigona mexicana (Guérin-Meneville), and Apis mellifera (L.), to food sources baited with the toxic bait GF-120 (NF Naturalyte), a spinosad-based bait exclusively used to manage fruit flies. Groups of foragers were trained to collect honey and water from a feeder located 50 m from the colonies. Once a sufficient number of foragers were observed at the experimental location, the training feeder was changed to two or three feeders that offered either honey and water, GF-120, Captor (hydrolyzed protein), GF-120 and honey (4:6), or Captor and honey (1:19). T. fulviventris and S. mexicana rarely visited GF-120, Captor, or their mixtures with honey, while ∼28.5 and 1.5% of A. mellifera foragers visited the GF-120 and honey and Captor and honey mixtures, respectively. Our results show that GF-120 clearly repels T. fulviventris and S. mexicana, whereas for A. mellifera, repellence is not as marked when GF-120 is combined with highly nutritious substances like honey.


33.
- Artículo con arbitraje
PDF PDF
Resumen en: Español | Inglés |
Resumen en español

La capacidad infectiva de los juveniles infectivos (JIs) del nemátodo H. bacteriophora (Poinar) fue evaluada contra larvas de tercer estadio de Anastrepha ludens (Loew) (Diptera: Tephritidae), bajo condiciones de laboratorio, utilizando suelo con textura areno-arcillosa con diferentes porcentajes de humedad. El estudio consistió de tres experimentos, donde se midió la efectividad de los juveniles infectivos (JIs): 1) probando seis diferentes niveles de humedad en el suelo; 2) en suelo con pérdida constante de humedad, durante 15 días; y 3) en suelo con 16% de humedad inicial y rehidratación cada cinco días. En el primer experimento se observó la mayor infección en suelo con 18% de humedad (-63.1 bars), aunque esta mortalidad no fue significativamente mayor a 21% de humedad (-20.4 bars). Con un suelo a 24% de humedad (-7.70 bars), el porcentaje de mortalidad de A. ludens disminuyó a cerca de 50%. De la misma forma, la mortalidad larval disminuyó significativamente en suelos con 15% y 12% de humedad (-240.1 y -1,232 bars, respectivamente), decreciendo aún más (16% de mortalidad) a 9% de humedad (-10,147 bars). En el segundo experimento se observó que a medida que la humedad del suelo decreció desde 16% hasta menos del 10% durante un período de 15 días, la infectividad de los JIs, expresada en mortalidad larval de A. ludens, disminuyó progresivamente desde más del 55% hasta menos del 10%. En el tercer experimento, la reposición periódica de la humedad permitió incrementar el período de infectividad de los JIs hasta los 21 días post-aplicación, pero después la infectividad de los JIs también fue disminuyendo. En conclusión, la humedad del suelo es un factor importante que debe ser considerado para mantener la infectividad de los JIs de H. bacteriophora como agentes de control biológico de dicha plaga.

Resumen en inglés

The efficacy of Heterorhabditis bacteriophora (Poinar) infective juveniles (IJs) was evaluated against third instar Anastrepha ludens (Loew) (Diptera: Tephritidae) under laboratory conditions in a sandy clay soil at various levels of soil moisture. Three experiments were performed in which the efficacy of the IJs against A. ludens was estimated, i.e., (a) at 6 different levels of soil moisture, (b) in soil that was allowed to lose moisture over a 15 day period, and (c) in soil with an initial moisture content of 16% and in which moisture loss was partially mitigated by adding water at 5-day intervals. In the first experiment, the greatest A. ludens mortality (80%) was observed in soil with 18% moisture (-63.1 bars), although this was not significantly greater than A. ludens mortality at 21% moisture (-20.4 bars). At 24% soil moisture (-7.70 bars), percentage of mortality of A. ludens declined to about 50%. Likewise insect mortality was substantially lower at soil moisture levels of 15% (-240.1 bars) and 12% (-1,232 bars) and very much lower (about 16%) at 9% soil moisture (-10,147 bars). In the second experiment, as soil moisture declined from 16% to less than 10% over a 15 day period, the infectivity of IJs, as indicated by A. ludens larval mortality, progressively declined from more than 55% to less than 10%. In the third experiment, in which moisture loss was partially mitigated by adding water at 5-day intervals, the decline in infectivity of IJs was gradual up to 21 days, but decreased thereafter. We conclude that soil moisture levels must be carefully considered when applying H. bacteriophora IJs to control A. ludens under field conditions, because soil moisture has a marked effect on the efficacy of IJs for the biological control of this pest.


34.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
Estimation of populations and sterility induction in Anastrepha ludens (Diptera: Tephritidae) fruit flies
Flores Breceda, Salvador ; Montoya Gerardo, Pablo Jesús (coaut.) ; Toledo, Jorge (coaut.) ; Enkerlin Hoeflich, Walther Raúl (coaut.) ; Liedo Fernández, Pablo (coaut.) ;
Contenido en: Journal of Economic Entomology Vol. 107, no. 4 (Augu 2014), p. 1502-1507 ISSN: 0022-0493
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
53591-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

The relationship between different release densities of sterile flies and fly trap captures, expressed as flies per trap per day, in the monitoring of Anastrepha ludens (Loew) populations was evaluated in mango orchards. The induction of sterility in fertile females was evaluated using different ratios of sterile: fertile males under field cage conditions. A direct relationship between recaptured flies and densities of release sterile flies was found. However, trap efficiency, expressed as percentage of recaptured flies, decreased as the density of released flies increased. Sterility induction was positively correlated to the ratio of sterile: fertile flies. A significant difference in egg fertility among treatments was observed. The trajectory of sterility induction slowed down after a sterile: wild ratio of 30:1, which suggests that this ratio could be appropriate in an sterile insect technique program with A. ludens. Sterility induction was greater when only sterile males were released than when releasing both sterile males and females, but the differences were not significant. Our findings contribute to a better interpretation of fly captures obtained from the field trapping networks, and to an improvement in the efficiency of sterile insect technique against A. ludens fruit flies, through the implementation of more rational sterile fly release densities.


35.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
Female pupae of the genetic sexing strain Tap-7 of Anastrepha ludens as hosts of Coptera haywardi
López Arriaga, Florida ; Montoya Gerardo, Pablo Jesús (coaut.) ; Cancino Díaz, Jorge Luis (coaut.) ; Toledo, Jorge (coaut.) ; Liedo Fernández, Pablo (coaut.) ;
Contenido en: BioControl Vol. 59, no. 2 (April 2014), p. 149-157 ISSN: 1386-6141
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
43977-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
PDF
Resumen en: Inglés |
Resumen en inglés

Female black pupae from the Anastrepha ludens genetic sexing strain Tapachula-7 were eval- uated as hosts for Coptera haywardi. We studied the host acceptance and the effects of age, irradiation and automated mechanical separation of black pupae on the emergence, survival, fecundity and flight ability of parasitoid C. haywardi adults. Our results indicated that black pupae are viable hosts for C. haywardi. Adult emergence was greater when the exposed pupae were three and five days old. The impact that occurred during mechanical separation reduced emergence by 16 %. The tested irradiation doses (25, 35 and 45 Gy) did not significantly affect adult emergence. No significant differences in longevity, fecundity or flight ability were observed between parasitoids that emerged from the Tapachula-7 black pupae and those that emerged from the standard mass-reared strain.


36.
Tesis - Maestría
Impacto del cebo tóxico GF-120 NF Naturalyte (Spinosad) sobre abejas sin aguijón y Apis mellifera (Hymenoptera: Apidae) / Enoc Gómez Escobar
Gómez Escobar, Enoc ; Sánchez Guillén, Daniel (tutor) ; Liedo Fernández, Pablo (asesor) ; Vandame, Rémy (asesor) ; Montoya Gerardo, Pablo Jesús (asesor) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2014
Clasificación: TE/638.159097275 / G6
Cerrar
SIBE Campeche
ECO040005383 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Chetumal
ECO030008073 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE San Cristóbal
ECO010017557 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
ECO020012728 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Villahermosa
ECO050005567 (Disponible)
Disponibles para prestamo: 1
PDF
Índice

I Introducción
II Respuesta de comportamiento de dos especies de abejas sin aguijón y la abeja melífera (Apis mellifera) al GF-120 NF Naturalyte
III Efecto del GF-120 Naturalyte sobre la mortalidad de abejas forrajeras de Apis mellifera bajo condiciones de laboratorio y campo
IV Efecto de aspersiones aéreas de GF-120 NF Naturalyte sobre colonias de la abeja sin aguijón Scaptotrigona mexicana y de la abeja Apis mellifera Apis mellifera
V Discusión y conclusiones
VI Literatura citada en los capítulos I y V
Anexos: Comprobante de envió de artículo sometido


37.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
Parasitism by Coptera haywardi and Diachasmimorpha longicaudata on Anatrepha flies with different fruits under laboratory and field cage conditions
Cancino Díaz, Jorge Luis ; Montoya Gerardo, Pablo Jesús (coaut.) ; Barrera, Juan F. (coaut.) ; Aluja Schuneman, Martín (coaut.) (1957-) ; Liedo Fernández, Pablo (coaut.) ;
Contenido en: BioControl Vol. 59, no. 3 (June 2014), p. 287-295 ISSN: 1386-6141
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
53748-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

Larvae of Anastrepha ludens and A. serpentina that developed in mango and sapodilla fruits, respectively, were exposed to Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae) and sequentially exposed as pupae to Coptera haywardi (Oglobin) (Hymenoptera: Diapriidae). Sequential exposure to both parasitoid species contributed to a decrease in fruit fly emergence due to higher levels of parasitism, which varied according to fruit type. In creole mango, D. longicaudata represented the highest percentage of parasitism. C. haywardi parasitism was greater in pupae from Ataulfo mangos and sapodilla, where the pulp size and volume may have acted as a refuge, allowing fly larvae to escape and leaving a greater number of unparasitised pupae available to C. haywardi. Similar results were obtained under field cage conditions, but the level of parasitism by C. haywardi was lower, suggesting that its effectiveness has some limitations under natural conditions. Our results suggest that both species can exert complementary parasitism, which represents an alternative worth to investigate under open field conditions.


38.
Artículo
Superparasitism strategies by a native and an exotic parasitoid species attacking the Mexican fruit fly, Anastrepha ludens (Diptera: Tephritidae)
Ayala Ayala, Amanda Pricila ; Figueroa, Isaac (coaut.) ; Pineda, Samuel (coaut.) ; Miranda, Mario (coaut.) ; Liedo Fernández, Pablo (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ;
Contenido en: Biocontrol Science and Technology DOI: 10.1080/09583157.2014.904503 (Apr 2014) ISSN: 0958-3157
Resumen en: Inglés |
Resumen en inglés

Superparasitism refers to the action of parasitoids ovipositing eggs in hosts that are already parasitized; this inevitably results in the elimination of supernumerary larvae in solitary parasitoids. Here, we investigated superparasitism performed by two species of solitary parasitoids on the larvae of Anastrepha ludens (Loew) (Diptera: Tephritidae): a native species, Doryctobracon crawfordi (Viereck) (Hymenoptera: Braconidae), and an exotic species, Diachasmimorpha tryoni (Cameron) (Hymenoptera: Braconidae). Tests were conducted under laboratory conditions evaluating the behavior of females acting alone (self-superparasitism) or in groups (conspecific superparasitism). Parasitism strategies were different between these two species. In D. crawfordi, the number of first instar larvae found in each dissected host pupa was never greater than two, regardless of the number of oviposition scars observed per pupa. In contrast, there was a positive correlation between the number of oviposition scars and the number of first instar larvae in D. tryoni. The survival and fecundity of D. crawfordi females emerging from pupae with one scar was higher than in females emerging from pupae with more scars. In D. tryoni, the number of oviposition scars did not show deleterious effects on life history traits and was positively correlated with the proportion of emerging females. An understanding of the superparasitism strategy adopted by parasitoid species could be of great interest to augmentative biological control programs because the mass rearing of natural enemies could be negatively or positively affected by this condition.


39.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
Anastrepha egg deposition induces volatiles in fruits that attract the parasitoid Fopius arisanus
Pérez López, Elsa Jeanneth ; Rojas, Julio C. (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ; Liedo Fernández, Pablo (coaut.) ; Castillo Vera, Alfredo (coaut.) ;
Contenido en: Bulletin of Entomological Research Vol. 103, no. 3 (Jun 2013), p. 318-325 ISSN: 0007-4853
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
37428-20 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

Fopius arisanus is a solitary egg–pupal endoparasitoid that attacks several species of tephritid fruit flies, particularly Bactrocera spp. This species, indigenous from the Indo-Australian region, was introduced into Mexico for biological control purposes. From the standpoint of the ‘new associations’ concept this parasitoid has been evaluated against fruit flies in the Anastrepha complex. We investigated the specificity of F. arisanus responses to fruits infested with two species of Anastrepha.We examined whether fruit volatiles attractive to this parasitoid are induced as a result of fruit fly oviposition. We also investigated whether F. arisanus females are able to discriminate between the oviposition-induced volatiles from host eggs parasitised by conspecifics and volatiles from unparasitised eggs. All experiments were performed in a wind tunnel. Results showed that mango fruits infested with A. ludens eggs (2–3 days after egg deposition) were significantly more attractive to naïve F. arisanus females compared with non-infested fruits or fruits infested with larvae. In addition, guava fruits harbouring A. striata eggs were significantly more attractive to the parasitoid than non-infested fruits or fruits infested with larvae.

Thus, the parasitoid was attracted to fruits with eggs, but fruit and fly species did not influence the parasitoid attraction. We also found that F. arisanus females were more attracted to fruits exposed to fertile A. ludens females (i.e. fruits with eggs inside) compared with fruits exposed to sterile females (i.e. fruits with no eggs inside) or fruits with mechanical damage. Parasitoid females were not attracted to A. ludens eggs. The results suggest that the presence of eggs induces volatiles that attract parasitoids. Finally, we found that F. arisanus was able to discriminate between fruits with unparasitised eggs vs. eggs parasitised by conspecifics, indicating that host discrimination could be mediated by olfactory cues.


40.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
Field superparasitism by Diachasmimorpha longicaudata attacking Anastrepha spp. larvae on mango fruits
Montoya Gerardo, Pablo Jesús ; Ruiz, Lía C. (coaut.) ; Pérez Lachaud, Gabriela (coaut.) ; Cancino Díaz, Jorge Luis (coaut.) ; Liedo Fernández, Pablo (coaut.) ;
Contenido en: Biological Control Vol. 64, no. 2 (February 2013) p. 160-165 ISSN: 1049-9644
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
52655-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

The incidence of superparasitism in field populations of Diachasmimorpha longicaudata (Ashmead), a solitary larval–pupal endoparasitoid, attacking Anastrepha fruit fly species was determined. From 14,550 fruit fly larvae infesting mango fruits in the field, 68.9% (10,038) survived to the pupal stage. Of these pupae, 3780 (37.7%) were parasitized, of which 2075 (54.9%) were superparasitized. The number of oviposition scars per pupa ranged between 1 and 29, although high numbers were rare. The presence of one or two scars per host was frequent, but only 8.6% of pupae had more than three scars. Fruit size was positively related to the level of infestation by Anastrepha spp. and was significantly correlated with the numbers of parasitized and superparasitized pupae by D. longicaudata. The length and width of host pupae were positively related to superparasitism, and superparasitism was positively correlated with a sex ratio biased toward females. Our data show that superparasitism is present in natural populations of D. longicaudata at remarkable rates and confers some advantageous features such as a female-biased sex ratio. These findings favor the election of this species as a viable biocontrol agent for augmentative releases because the favorable proportion of adult females emerging from superparasitized pupa should contribute to better pest control.


41.
- Artículo con arbitraje
*En hemeroteca SIBE-Tapachula
Hot-water phytosanitary treatment against Ceratitis capitata (Diptera: tephritidae) in Ataulfo mangoes
Hernández Ortiz, Emilio ; Rivera, Pedro (coaut.) ; Bravo, Bigail (coaut.) ; Toledo, Jorge (coaut.) ; Caro Corrales, José (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ;
Contenido en: Journal of Economic Entomology Vol. 105, no. 6 (December 2012), p. 1940-1953 ISSN: 0022-0493
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
52541-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

We determined the thermal death rate constants and mortality curves for the eggs and different instars of Ceratitis capitata (Mediterranean fruit ßy) (Wiedemann) submerged in isolation in water at 44, 46, and 48 C and submerged within fruits of Mangifera indica (mango) (L.) in water at 43.1, 44.1, 45.1, and 46.1 C. The Þrst instar was the most tolerant to this treatment, with estimated times for achieving 99.9968% mortality of 103.28, 92.73, and 92.49 min at temperatures of 43.1, 44.1, and 45.1 C, respectively. The results of the study indicate that Ataulfo mangoes weighing 329 2.11 g and at risk immature Mediterranean fruit ßy infestation should be immersed for 95 min at 46.1Ð47 C to ensure that the fruit pulp remains at this temperature for 10 min. An efÞcacy test was conducted that involved treating 730 mangoes, with an average weight of 326 2.11 g (mean SE) and infested with 84 1.15 Þrst instars. In this test, none of the 61,720 larvae treated survived. The conÞrmatory test was performed using commercial equipment in which 1,112 infested mango fruit weighing an average of 329 2.11 g were treated. Each fruit was previously infested with an average of 59 0.61 Þrst instars ( 65,825 total larvae) of which none survived. The data collected on mango quality indicate that hot water immersion for 95 min at 46.1Ð47 C can produce a more uniform fruit-color and positively modify the pH (producing more palatable fruits), but can also produce a loss of Þrmness and weight (5%). Taking all factors into consideration, we conclude that this treatment is sufÞcient to meet quarantine restrictions against C. capitata while maintaining market quality at least for 15 d.


42.
- Artículo con arbitraje
Resumen en: Inglés |
Resumen en inglés

Sterile Mediterranean fruit fly, Ceratitis capitata (Wied.), males were evaluated as vectors to spread Beauveria bassiana (Bals) conidia to wild C. capitata populations under field conditions. The inoculated sterile males were released by air, using the chilled adult technique over 7000 ha of coffee growing in Chimaltenango, Guatemala, Central America. The impact of releases was determined using dry traps baited with a food attractant. The effects of these releases on Apis mellifera, Linnaeus (honey bee), Hypothenemus hampei, Ferrari (coffee berry borer) and the parasitic mite Varroa destructor (Oudeman) were also evaluated. Inoculated sterile males were able to transmit fungal spores to 44% of the wild C. capitata flies captured in traps, which likely were infected through intra- and intersexual interactions during leks, mating or mating attempts. There was no transmission of the fungal spores to non-target insect species such as coffee berry borer, honey bees or varroa. We conclude that sterile males of Mediterranean fruit fly inoculated with B. bassiana can act as effective vectors of conidia to wild populations, constituting a safe, environmentally friendly and selective alternative for suppressing the medfly under a Sterile Insect Technique-based IPM approach.


43.
Tesis - Maestría
Viabilidad de la cepa sexada genéticamente de Anastrepha ludens, Tapachula-7, para la cría masiva de Coptera haywardi / Florida López Arriaga
López Arriaga, Florida ; Liedo Fernández, Pablo (tutor) ; Montoya Gerardo, Pablo Jesús (director) ; Toledo, Jorge (asesor) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2013
Clasificación: TE/632.774 / L64
Cerrar
SIBE Campeche
ECO040005032 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Chetumal
ECO030007883 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE San Cristóbal
ECO010008333 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
ECO020012895 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Villahermosa
ECO050005434 (Disponible)
Disponibles para prestamo: 1
PDF
Índice

Introducción
Capítulo de artículo enviado
Conclusiones
Bibliografía


44.
Tesis - Doctorado
Atributos de Coptera haywardi (Hymenoptera: Diapriidae) como enemigo natural en el control biológico múltiple de moscas de la fruta (Diptera: Tephritidae) / Jorge Luis Cancino Díaz
Cancino Díaz, Jorge Luis ; Liedo Fernández, Pablo (tutor) ; Montoya Gerardo, Pablo Jesús (asesor) ; Barrera, Juan F. (asesor) ; Aluja Schuneman, Martín (asesor) (1957-) ;
Villahermosa, Tabasco, México : El Colegio de la Frontera Sur , 2012
Clasificación: TE/632.774 / C35
Cerrar
SIBE Campeche
ECO040004884 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Chetumal
ECO030007721 (Disponible)
Disponibles para prestamo: 1
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SIBE San Cristóbal
ECO010016236 (Disponible)
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SIBE Tapachula
ECO020012701 (Disponible)
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SIBE Villahermosa
ECO050002882 (Disponible)
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Índice | Resumen en: Español |
Resumen en español

El endoparasitoide solitario Coptera haywardi (Oglobin) (Hymenoptera: Diapriidae) tiene una relación muy específica hacia pupas de moscas del género Anastrepha (Schiner) (Diptera:Tephritidae). Esto le confiere especial atención para emplearlo como un parasitoide complementario en el control biológico de moscas de la fruta. Para lo cual se realizaron cuatro evaluaciones. En la primera se demostró que C. haywardi tiene una alta capacidad de discriminar pupas que previamente fueron parasitadas por el parasitoide de larvas Diachasmimorpha longicaudata (Ahsmead) (Hymenoptera: Braconidae). En una segunda evaluación se obtuvo que tanto en unidades de oviposición aritificiales, como en diferentes frutos en condiciones de laboratorio y campo, el parasitismo de ambas especies incrementó la mortalidad de larvas. El mayor volumen de pulpa de los frutos sirvió a las larvas de Anastrepha spp. como refugio del parasitismo de D. longicaudata, lo que permitió que en estado de pupa la acción de C. haywardi fuera más evidente. En la tercera evaluación se tomaron los datos de la exposición secuencial de ambos parasitoides para conocer su efecto como factores de mortalidad en poblaciones de moscas. Se construyó una tabla de vida de decremento múltiple, para comprobar que la mortalidad que infringen las dos especies de parasitoides es mayor que la ocasionada por la acción de una sola especie.

Finalmente en un estudio demográfico se encontró que C. haywardi tiene una tasa intrínseca de incremento negativa por debajo de lo 500 msnm, lo cual limita su acción a las condiciones ambientales características de altura superiores (menos cálidos y más húmedos), por su parte D. longicaudata tiene una rango acción efectiva más amplio. Bajo condiciones adecuadas, C. haywardi tiene un período de supervivencia promedio de 10 días que puede ser clave para dispersarse distancias cercanas a los 100 m. Con base a los resultados se sugiere realizar liberaciones de múltiples especies de parasitoides para un control biológico de moscas de la fruta más eficiente.

Índice

Capítulo 1
1.1. Introducción
1.2. Objetivos
1.2.1 Objetivo general
1.2.2 Objetivos particulares
1.3. Marco teórico
1.3.1. Problemática de las moscas de la fruta
1.3.2. El manejo integrado de plagas y el control biológico de moscas de la fruta
1.3.3. Entre los mitos y la realidad del control biológico de moscas de la fruta
1.3.4. La necesidad de aplicar el control biológico en moscas de la fruta
1.3.5. Optimizar el control biológico
1.3.6. El dilema del control biológico múltiple
1.3.7. El nicho ecológico y la competitividad
1.3.8. La exclusión y los beneficios de la coexistencia
1.3.9. La discriminación de hospederos y su importancia en la coexistencia de parasitoides
1.3.10. La coexistencia como base del control biológico múltiple
1.3.11. El control biológico múltiple como factor de mortalidad
1.3.12. Los atributos de los parasitoides y la definición de una estrategia
Capítulo 2
Discriminación de Coptera haywardi (Hymenoptera: Diapriidae) de hospederos previamente atacados por el parasitoide de larvas Diachasmimorpha longicaudata (Hymenoptera: Braconidae)
2.1. Introducción
2.2. Materiales y métodos
2.2.1. Arena de observación y colecta de datos de comportamiento
2.2.2. Discriminación de pupa parasitada
2.2.3. Discriminación de pupa superparasitada
2.2.4. Discriminación de acuerdo a la edad de la hembra
2.2.5. Disección de pupas y emergencia
2.2.6. Análisis de datos
2.3. Resultados
2.3.1. Discriminación de pupa parasitada
2.3.2. Discriminación de pupa superparasitada
2.3.3. Discriminación de acuerdo a la edad de la hembras
2.3.4. Disección de pupas y emergencia
2.4. Discusión

Capítulo 3
Parasitismo complementario de Coptera haywardi (Hymenoptera: Diapriidae y Diachasmimorpha longicaudata (Hymenoptera: Braconidae) para el control biológico de moscas de la fruta
3.1. Introducción
3.2. Materiales y métodos
3.2.1. Condiciones experimentales
3.2.2. Exposición de hospederos a parasitoides
3.2.3. Parasitismo en unidades artificiales
3.2.4. Parasitismo en frutos
3.2.5. Parasitismo en frutos en jaulas de campo
3.2.6. Análisis estadístico
3.3. Resultados
3.3.1. Parasitismo en unidades artificiales
3.3.2. Parasitismo en frutos
3.3.3. Parasitismo en jaulas de campo
3.4. Discusión
Capítulo 4
Tabla de vida de decremento múltiple: Análisis de la mortalidad de moscas del género Anastrepha causadas por dos especies de parasitoides
4.1. Introducción
4.2. Materiales y métodos
4.2.1. Material biológico
4.2.2. Infestación de frutas
4.2.3. Mantenimiento de las frutas infestadas y pupas
4.2.4. Tratamientos
4.2.5. Exposición a parasitoides
4.2.6. Muestreos para contabilizar mortalidad
4.2.7. Análisis de datos
4.3. Resultados
4.4. Discusión
Capítulo 5
Supervivencia, fecundidad y dispersión de Diachasmimorpha longicaudata y Coptera haywardi en un gradiente altitudinal
5.1. Introducción
5.2. Materiales y métodos
5.2.1. Área de estudio
5.2.2. Supervivencia y fecundidad
5.2.3. Evaluaciones de dispersión
5.3. Resultados
5.3.1. Supervivencia y fecundidad
5.3.2. Dispersión
5.4. Discusión
Capítulo 6
6.1. Discusión general
Literatura Citada


45.
- Artículo con arbitraje
Resumen en: Inglés |
Resumen en inglés

Coptera haywardi (Oglobin) is an endoparasitoid of fruit fly pupae that could find itself in competition with other parasitoids, both con- and heterospecific, already resident inside hosts. In choice bioassays, ovipositing C. haywardi females strongly discriminated against conspecifically parasitised Anastrepha ludens (Loew) pupal hosts. They also avoided pupae previously attacked by Diachasmimorpha longicaudata (Ashmead), a larval–prepupal koinobiont endoparasitoid, and the degree of larval-parasitoid superparasitism had no effect on this avoidance. There was no difference in the number of ovipositor insertions when hosts previously parasitised by a conspecific and D. longicaudata were exposed simultaneously. As females aged the degree of host discrimination declined. An ability to discriminate against pupae previously attacked as larvae suggests low levels of both conspecific and heterospecific competition in the field.


46.
- Artículo con arbitraje
*En hemeroteca, SIBE-Tapachula
Size, shape and hue modulate attraction and landing responses of the braconid parasitoid Fopius arisanus to fruit odour-baited visual targets
Pérez López, Elsa Jeanneth ; Rojas, Julio C. (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ; Liedo Fernández, Pablo (coaut.) ; González, Francisco J. (coaut.) ; Castillo Vera, Alfredo (coaut.) ;
Contenido en: BioControl Vol. 57, no. 3 (Jun 2012), p. 405-414 ISSN: 1386- 6141
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
34799-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
Resumen en: Inglés |
Resumen en inglés

Female parasitoids are guided by multisensory information, including chemical and physical cues during host location. In the present study, we investigated the behavioural responses of naïve Fopius arisanus (Sonan) females to visual targets baited with guava odour. In non-choice wind tunnel tests, the attraction and landing responses of parasitoids to spheres painted with different colours, and targets of different shapes and sizes were evaluated. Females were more frequently attracted and landed more often on dark yellow targets than on targets with other colours. There was no correlation between the brightness of each colour and the attraction or landing responses. In contrast, both responses were correlated with relative reflectance (hue) of the coloured targets. A positive correlation was observed between attraction and hue, and a negative correlation between landing and hue. F. arisanus was attracted to and landed more often on spheres than on other shape models. The attraction response of this parasitoid was affected by the size of the targets, with spheres of 10 and 12 cm diameter being more attractive than spheres of 8, 6 and 4 cm diameter. The fact that F. arisanus females were able to discriminate among visual targets that differ in colour, shape and size stresses the importance of vision during host location by this species.


47.
- Artículo con arbitraje
Superparasitism in the fruit fly parasitoid diachasmimorpha longicaudata (Hymenoptera: Braconidae) and the implications for mass rearing and augmentative release
Montoya Gerardo, Pablo Jesús ; Pérez Lachaud, Gabriela (coaut.) ; Liedo Fernández, Pablo (coaut.) ;
Contenido en: Insects Vol. 3, no. 4 (September 2012), p. 900-911 ISSN: 2075-4450
Resumen en: Inglés |
Resumen en inglés

Superparasitism, a strategy in which a female lays eggs in/on a previously parasitized host, was attributed in the past to the inability of females to discriminate between parasitized and non-parasitized hosts. However, superparasitism is now accepted as an adaptive strategy under specific conditions. In fruit fly parasitoids, superparasitism has mainly been studied as concerns the new association between Diachasmimorpha longicaudata (Ashmead) (Hymenoptera: Braconidae) and the Mexican fruit fly Anastrepha ludens (Loew) (Diptera: Tephritidae), wherein this phenomenon is a common occurrence in both mass rearing and field conditions. Studies of this species have shown that moderate levels of superparasitism result in a female-biased sex ratio and that both massreared and wild females superparasitize their hosts without detrimental effects on offspring demographic parameters, including longevity and fecundity. These studies suggest that superparasitism in this species is advantageous. In this paper, we review superparasitism in D. longicaudata, discuss these findings in the context of mass rearing and field releases and address the possible implications of superparasitism in programs employing augmentative releases of parasitoids for the control of fruit fly pests.


48.
Tesis - Doctorado
Búsqueda de hospedero de Fopius arisanus en su nueva asociación con Anastrepha spp. / Elsa Jeanneth Pérez López
Pérez López, Elsa Jeanneth ; Rojas, Julio C. (tutor) ; Montoya Gerardo, Pablo Jesús (asesor) ; Liedo Fernández, Pablo (asesor) ; Castillo Vera, Alfredo (asesor) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2011
Clasificación: TE/632.774 / P47
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SIBE Campeche
ECO040004633 (Disponible)
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SIBE Chetumal
ECO030007562 (Disponible)
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SIBE San Cristóbal
ECO010015184 (Disponible)
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SIBE Tapachula
ECO020011854 (Disponible)
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ECO050004879 (Disponible)
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Índice | Resumen en: Español |
Resumen en español

Fopius arisanus (Sonan) es un endoparasitoide huevo-pupa que ataca varias especies de Tephritidae, particularmente dentro del género Bactrocera. Bajo el concepto de “nuevas asociaciones” este parasitoide está siendo evaluado para el control biológico de moscas del género Anastrepha. En el presente estudio se investigó el comportamiento de búsqueda de hospedero de F. ariasnus en esta nueva asociación. Se evaluó la respuesta comportamental de las hembras inexpertas a estímulos visuales de diferente color, forma y tamaño, cebados con el olor de frutos de guayaba. Se encontró que la reflectancia relativa (tono) de los colores evaluados estuvo correlacionada positivamente con la atracción y de manera negativa con el aterrizaje de F. arisanus. El parasitoide fue más atraído hacia esferas amarillas que hacia los otros colores evaluados. En bioensayos donde se usaron volátiles de frutos de mango y guayaba infestados con huevos de A.ludens o A. striata, se encontró que las hembras de F. arisanus fueron más atraídas hacia los volátiles de frutos infestados con huevos, en comparación con frutos sin infestar o frutos infestados con larvas.

Se determinó que la atracción del parasitoide no está influenciada por la especie de mosca de la fruta o la especie de fruto. En otros experimentos, las hembras de este himenóptero fueron menos atraídas a frutos con daño mecánico que a frutos que albergaban huevos del hospedero. Los resultados obtenidos sugieren que la presencia de los huevos induce la emisión de volátiles que atraen al parasitoide. Por otra parte, se determinó que F. arisanus puede discriminar frutos de guayaba con huevos parasitados por conespecíficos sobre aquellos frutos que contienen huevos sin parasitar, indicando que la discriminación en esta especie puede estar mediada por señales olfativas. Factores tales como la edad, la carga ovárica y el ayuno de F. arisanus modifican la respuesta de este parasitoide a los volátiles emitidos por frutos infestados con huevos de su hospedero. Finalmente, se identificaron algunos compuestos presentes en la mezcla de volátiles emitidos por frutos infestados, que podrían ser los responsables de la atracción del parasitoide. Sin embargo, se requiere llevar a cabo evaluaciones adicionales para corroborar el papel de estos compuestos en la atracción. En conclusión, los resultados derivados de este trabajo demuestran que durante el proceso de búsqueda de hospedero en esta nueva asociación, las hembras inexpertas de F. arisanus emplean señales visuales y químicas, estas últimas inducidas en los frutos como respuesta a la oviposición de Anastrepha spp.

Índice

Capítulo I. Introducción general
1.1. El control biológico de insectos plaga
1.2. Las nuevas asociaciones en control biológico
1.3. Búsqueda y selección de hospedero en parasitoides
1.3.1. El papel de la olfacción en la búsqueda de hospedero
1.3.1.1. Infoquímicos de largo alcance
1.3.1.2. Infoquímicos de corto alcance
1.3.2. El papel de la visión en la búsqueda de hospedero
1.3.3. Factores que afectan el comportamiento de búsqueda de hospedero
1.3.3.1. Factores internos
1.3.3.2. Factores externos
1.3.3.3. Factores abióticos
1.3.3.4. Factores bióticos
1.3.3.5. Factores adquiridos
1.4. Modelo de estudio
1.5. Historia de vida de Fopius arisanus
1.5.1. Biología
1.5.2. Búsqueda de hospedero de Fopius arisanus
1.5.3. Fopius arisanus como agente de control biológico
1.6. Objetivos
1 1.6.1. Objetivo general
1.6.2. Objetivos específicos
Capítulo II. Uso de señales visuales durante la búsqueda de hospedero
2.1. Introducción
2.2. Materiales y métodos
2.2.1. Insectos
2.2.2. Bioensayos
2.2.3. Respuesta a modelos de diferente color
2.2.4. Respuesta a modelos de diferente forma
2.2.5. Respuesta a modelos de diferente tamaño
2.2.6. Análisis estadístico
2.3. Resultados
2.3.1. Respuesta a modelos de diferente color
2.3.2. Respuesta a modelos de diferente forma
2.3.3. Respuesta a modelos de diferente tamaño
2.4. Discusión
Capítulo III. Respuesta comportamental de Fopius arisanus a estímulos químicos procedentes del complejo planta-Anastrepha spp
3.1. Introducción
3.2. Materiales y métodos
3.2.1. Insectos
3.2.2. Bioensayos
3.2.3. Fuente de olor
3.2.4. Experimento 1: Especificidad de la respuesta de F. arisanus
3.2.5. Experimento 2: ¿Son los volátiles inducidos por la oviposición de Anastrepha los que afectan la respuesta de las hembras de F. arisanus?

3.2.6. Experimento 3: ¿Pueden las hembras de F. arisanus discriminar a distancia los hospederos parasitados por con-específicos de los no parasitados?
3.2.7. Análisis estadístico
3.3. Resultados
3.3.1. Experimento 1: Especificidad de la respuesta de F. arisanus
3.3.2. Experimento 2: ¿Son los volátiles inducidos por la oviposición de Anastrepha los que afectan la respuesta de las hembras de F. arisanus?
3.3.3. Experimento 3: ¿Pueden las hembras de F. arisanus discriminar a distancia los hospederos parasitados por con-específicos de los no parasitados?
3.4. Discusión
Capítulo IV. Compuestos químicos involucrados en la atracción de F. arisanus a volátiles emitidos por frutos de guayaba infestados
4.1. Introducción
4.2. Materiales y métodos
4.2.1. Colecta de volátiles
4.2.2. Pruebas electrofisiológicas
4.2.2.1. Electroantenografía (EAG)
4.2.2.2. Cromatografía de gases acoplada a electro-anteno-detección (EAD-CG)
4.2.3. Respuesta comportamental a volátiles modificados in situ
4.2.4. Respuesta comportamental a extractos de frutos de guayaba infestados
4.2.5. Análisis químico de los volátiles colectados
4.2.6. Análisis estadístico
4.3. Resultados
4.3.1. Electroantenografía (EAG)
4.3.2. Cromatografía de gases acoplada a electro-anteno-detección (EAD-CG)
4.3.3. Respuesta comportamental a volátiles modificados in situ
4.3.4. Respuesta comportamental a extractos de frutos de guayaba infestados
4.3.5. Volátiles colectados de frutos de guayaba
4.3.6. Análisis de los volátiles obtenidos con diferentes filtros
4.4. Discusión
Capítulo V. Factores que influyen el comportamiento de búsqueda de hospedero
5.1. Introducción
5.2. Materiales y métodos
5.2.1. Insectos
5.2.2. Bioensayos
5.2.3. Influencia de la edad
5.2.4. Influencia del estado reproductivo
5.2.5. Influencia del ayuno
5.2.6. Influencia de la oviposición

5.2.7. Análisis estadístico
5.3. Resultados
5.3.1. Influencia de la edad
5.3.2. Influencia del estado reproductivo
5.3.3. Influencia del ayuno
5.3.4. Influencia de la oviposición
5.4. Discusión
Capítulo VI. Discusión general
Literatura citada


49.
Artículo
*En hemeroteca, SIBE-Tapachula
Residual control and lethal concentrations of GF-120 (Spinosad) for Anastrepha spp. (Diptera: Tephritidae)
Flores Breceda, Salvador ; Gómez, Luis E. (coaut.) ; Montoya Gerardo, Pablo Jesús (coaut.) ;
Contenido en: Journal of Economic Entomology Vol. 104, no. 6 (December 2011), p. 1885-1891 ISSN: 0022-0493
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
51175-10 (Disponible)
Disponibles para prestamo: 1
Nota: En hemeroteca, SIBE-Tapachula
PDF
Resumen en: Inglés |
Resumen en inglés

The objective of this study was to determine the relationship between residual time of GF-120 (spinosad) treatment and mortality in three species of Anastrepha Schiner. Concentrations of 96, 72, 48, and 24 ppm were aged on mango leaves under field conditions for 0, 3, 7, 10, 14, 17, and 21 d after application. We found that Anastrepha ludens, A. obliqua, and A. serpentina were highly sensitive to spinosad. The effects of spinosad were not reduced over the 4 d after the initial application, even at a concentration of 24 ppm. Mortality at 14 d after the application of 72 and 96 ppm of spinosad was similar in each of the three fruit fly species. In addition, we found that 24 ppm of spinosad was consumed the most by each species even though no direct relationship between the rate of consumption per female and the dose of the product was observed, in this test, higher consumption of active ingredient was observed at a concentration of 72 ppm, for A. ludens, 48 ppm for A. obliqua, and 96 ppm for A. serpentina. Our results suggest that a spinosad concentration of 72 ppm may effectively control these pests for at least 10 d under field conditions.


50.
Capítulo de libro
*Solicítelo con su bibliotecario/a
Conceptos sobre trampeo y atrayentes
Montoya Gerardo, Pablo Jesús (autor) ; Toledo, Jorge (autor) ; Flores Breceda, Salvador (autor) ;
Contenido en: Moscas de la fruta : fundamentos y procedimientos para su manejo Distrito Federal, México : S y G Editores, 2010 p. 133-146 ISBN:607-7552-06-2 :: 978-607-7552-06-2
Bibliotecas: San Cristóbal , Tapachula
Cerrar
SIBE San Cristóbal
28143-760 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
28143-770 (Disponible)
Disponibles para prestamo: 1
Nota: Solicítelo con su bibliotecario/a
Resumen en español

En este capítulo se describen algunos de los sistemas de trampeo mayormente utilizados para el monitoreo y detección de moscas de la fruta. Estos sistemas pueden combinar trampas (húmedas y secas) con diferentes tipos de atrayentes (feromonas, para-feromonas y alimenticios), aunque existen sistemas que se utilizan de manera específica (e.g., trampa Jackson [seca-pegajosa] + trimedlure para la mosca del Mediterráneo). El trampeo permite estimar de manera relativa la abundancia en campo de estas plagas a través del índice MTD (Mosca/Trampa/Día). Este índice puede ser afectado por varios factores entre los que se incluyen las condiciones abióticas (temperatura, humedad y precipitación pluvial), las condiciones bióticas (tipo, densidad y fenología de las plantas hospederas), algunos aspectos fisiológicos de la mosca (edad, estado nutricional y reproductivo), así como por la calidad de las trampas y los atrayentes utilizados. En este trabajo también se discuten las ventajas y desventajas de los diferentes sistemas de trampeo actualmente disponibles para estas plagas, así como los desarrollos tecnológicos que buscan solventar algunas de las deficiencias identificadas, resaltando la necesidad de contar con alternativas más específicas y eficientes para las diferentes especies de importancia económica. El objetivo final siempre será transferir a las organizaciones nacionales de protección fitosanitaria y a los productores una tecnología de trampeo asequible, que les permita hacer más eficiente las acciones de control que establecen contra este tipo de plagas.