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89 resultados encontrados para: AUTOR: Montoya Gerardo, Pablo Jesús
11.
- Artículo con arbitraje
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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
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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
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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
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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)
Disponibles para prestamo: 1
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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
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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
Cerrar
SIBE Tapachula
ECO020013672 (Disponible)
Disponibles para prestamo: 1
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Índice

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