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13 resultados encontrados para: AUTOR: Pérez Staples, Diana
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1.
- Artículo con arbitraje
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Sexual competitiveness, field survival, and dispersal of Anastrepha obliqua (Diptera: Tephritidae) fruit flies irradiated at different doses
Gallardo Ortiz, Uriel ; Pérez Staples, Diana (coaut.) ; Liedo Fernández, Pablo (coaut.) ; Toledo, Jorge (coaut.) ;
Contenido en: Journal of Economic Entomology Vol. 111, no. 2 (April 2018), p. 761–769 ISSN: 0022-0493
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Resumen en: Inglés |
Resumen en inglés

The sterile insect technique (SIT) is used in area-wide pest management programs for establishing low pest prevalence and/or areas free of fruit flies (Diptera: Tephritidae). The aim of this technique is to induce high levels of sterility in the wild population, for this the released insects must have a high sexual competitiveness and field dispersal. However, radiation decreases these biological attributes that do not allow it to compete successfully with wild insects. In this study the sexual competitiveness, field survival and dispersal of Anastrepha obliqua (Macquart; Diptera: Tephritidae) irradiated at 0, 40, 50, 60, 70, and 80 Gy were evaluated in laboratory. A dose of 60 Gy produced 98% sterility, whereas doses of 70 and 80 Gy produced 99% sterility. Sexual competitiveness was assessed in field cages, comparing males irradiated at 0, 50, 60, 70, and 80 Gy against wild males for mating with wild fertile females. Males irradiated at 50 and 60 Gy achieved more matings than those irradiated at 70 and 80 Gy. Wild males were more competitive than mass-reared males, even when these were not irradiated (0 Gy). There was no effect of irradiation on mating latency, yet wild males showed significantly shorter mating latency than mass-reared males. Female remating did not differ among those that mated with wild males and those that mated with males irradiated with different doses. The relative sterility index (RSI) increased from 0.25 at 80 Gy to 0.37 at 60 Gy. The Fried competitiveness index was 0.69 for males irradiated at 70 Gy and 0.57 for those irradiated at 80 Gy, which indicates that a 10 Gy reduction in the irradiation dose produces greater induction of sterility in the wild population.

There were no significant differences in field survival and dispersal between flies irradiated at 70 or 80 Gy. Reducing the irradiation dose to 60 or 70 Gy could improve the performance of sterile males and the effectiveness of the SIT. Our results also distinguish between the effects of irradiation and mass-rearing on the performance of sterile males.


2.
Artículo
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Sexual competitiveness of fertile and sterile, wild and mass-reared males of Anastrepha obliqua
Gallardo Ortiz, Uriel (autor) ; Pérez Staples, Diana (autora) ; Liedo Fernández, Pablo (autor) ; Toledo, Jorge (autor) ;
Contenido en: Entomologia Experimentalis et Applicata Vol. 166, no. 9 (September 2018), p. 771-777 ISSN: 1570-7458
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Resumen en: Inglés |
Resumen en inglés

Anastrepha obliqua (Macquart) (Diptera: Tephritidae), commonly known as theWest Indies fruit fly, is a pest species ofmango, plum (both Anacardiaceae), and other commercial crops in various countries in the Neotropics, including Mexico, Central and South America, and the Caribbean islands. Currently, the sterile insect technique (SIT) is used to control this pest. Here, the sexual competitiveness ofmass-reared sterile A. obliquamales was evaluated against wildmales in field cages. In the first experiment, fertile mass-reared males had similar sexual performance as fertile wild males reared on mango and tropical plum. In the second experiment, sterilemass-reared males had better sexual performance than sterile wild males recovered from mango and tropical plum. In the third experiment, fertile wild males recovered from mango had better sexual performance than sterile mass-reared males. The relative sterility index (RSI) was 0.32, indicating low acceptance of sterile males by wild females. The induced sterility index estimated by Fried’s test produced a coefficient of 0.4, indicating that irradiation affected the sexual performance of the mass-reared males, which had reduced sexual performance compared to wild males. We discuss our results in the context ofmass-rearing and sterilization as part of the SIT programs used to control A. obliqua.


3.
- Artículo con arbitraje
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Artificial selection on mating competitiveness of Anastrepha ludens for sterile insect technique application
Sánchez Rosario, Mayren (autora) ; Pérez Staples, Diana (autora) ; Toledo, Jorge (autor) ; Valle Mora, Javier Francisco (autor) ; Liedo Fernández, Pablo (autor) ;
Contenido en: Entomologia Experimentalis et Applicata Vol. 162, no. 2 (February 2017), p. 133–147 ISSN: 1570-7458
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Resumen en: Inglés |
Resumen en inglés

The sterile insect technique (SIT) has been applied successfully for the control of several fruit fly species of economic importance. In species with lek mating systems, as in the Mexican fruit fly, Anastrepha ludens (Loew) (Diptera: Tephritidae) – where the variance in male mating success is high, males have to compete with other males, and where wild females are highly selective – the success of SIT depends on the sexual competitiveness of mass-reared sterile males. However, mass-rearing conditions result in selection of sexual behavioral traits that differ from wild flies, reducing mating competitiveness of sterile flies and SIT efficiency. Artificial selection in mass-rearing colonies, based on male mating success, represents an alternative to improve the sexual performance of sterile males. Here, we evaluated the effect of selection of A. ludens mass-reared males based on their mating competitiveness. Two modes of selection were compared, one single selection event on parental flies, and continuous selection along four consecutive generations. For the offspring of each treatment in each generation, we evaluated male mating success, its association with post-copulatory behavior through female remating inhibition, and life-history traits that are key for mass-rearing, such as immature survival and reproduction.

Field cage mating tests revealed that wild males were more competitive than mass-reared males (selected and unselected). Although no significant differences were found between mass-reared selected and non-selected males, in the fourth generation males from the selected colonies performed better than males from the non-selected colonies and their mating competitiveness was similar to that of wild males. No consistent differences were observed in mating latency, copulation duration, or ability to inhibit female remating. Survival and fecundity decreased with increasing rearing generations, except in the colony with continuous selection where fecundity and fertility increased.


4.
Tesis - Maestría
Competitividad sexual, supervivencia y dispersión en campo de Anastrepha obliqua (Macquart) (Diptera: Tephritidae) irradiadas a diferentes dosis / Uriel Gallardo Ortiz
Gallardo Ortiz, Uriel ; Toledo, Jorge (director) ; Liedo Fernández, Pablo (asesor) ; Pérez Staples, Diana (asesora) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2017
Clasificación: TE/632.774 / G37
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
ECO020013671 (Disponible)
Disponibles para prestamo: 1
PDF
Índice | Resumen en: Español |
Resumen en español

En México y otros países de América Latina, la principal limitante para la comercialización y movilización del mango es la mosca Mexicana de la fruta, Anastrepha ludens (Loew) y la mosca de las Indias Occidentales, Anastrepha obliqua (Macquart). La presencia en los huertos comerciales de estas dos especies es motivo de establecimiento de rigurosas restricciones por parte de los países compradores de fruta, como es el caso de Estados Unidos (USDA/APHIS 2006). Debido a la importancia económica del mango en nuestro país, las moscas de la fruta son consideradas plagas de interés público, por lo que en 1992, el gobierno federal implementó la Campaña Nacional contra Moscas de la Fruta (CNCMF) aplicando un manejo con enfoque en áreas grandes para lograr establecer zonas libres y/o de baja prevalencia (Reyes et al. 2000). Para lograr dicha meta, se aplican diversos métodos de control, como es la aplicación de cebos tóxicos, recolección y destrucción de frutos, cosecha sanitaria, liberación de parasitoides y la técnica del insecto estéril (TIE) (NOM-075-FITO-1997). La TIE es una estrategia de manejo de plagas que requiere de la cría masiva, esterilización y liberación constante de grandes cantidades de insectos en campo. Según la Convención Internacional de Protección de Plantas (IPPC, por sus siglas en inglés), la TIE es un método de control de plagas mediante liberaciones sistemáticas de insectos estériles en áreas con presencia de una determinada plaga para reducir la fertilidad de las poblaciones silvestres (FAO 2005), lo cual requiere del establecimiento de una relación estéril: silvestre óptima (Klassen 2005).

Índice

I. Introducción
II. Sexual Competitiveness, Field Survival and Dispersal of Anastrepha obliqua (Macquart) (Diptera: Tephritidae) Fruit Flies Irradiated at Different Doses
III. Conclusiones
IV. Literatura Citada


5.
- 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 |
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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.


6.
- Artículo con arbitraje
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Laboratory evaluation of two commercial abamectin-based insecticides against Anastrepha ludens (Diptera: Tephritidae): lethal and sublethal effects
Díaz Fleischer, Francisco (coaut.) ; Pérez Staples, Diana (coaut.) ; Valle Mora, Javier Francisco (coaut.) ; García Pérez, José Antonio (coaut.) ;
Contenido en: Journal of Economic Entomology Vol. 109, no. 6 (October 2016), p. 2472-2478 ISSN: 1938-291X
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Resumen en: Inglés |
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Toxic environmental effects of most insecticides have led to a search for bio-organic insecticides. In this study, we tested the effects of lethal and sublethal exposure to two abamectin-based insecticides (VOLIAM TARGO and LUQ-THOR) on survival, mating, and oviposition of the tephritid Anastrepha ludens (Loew). Different doses of insecticides (0.001–2.00% of the commercial products) were offered mixed with the phagostimulant bait Captor commonly used in spraying and in trapping activities for the control of flies. Both insecticides exhibited 90% killing effectiveness (Abbott index) when offered in doses between 0.02 to 2.00%. The LC 50 obtained from the bioassay at 72 h after treatment was 0.003% of commercial product for TARGO and 0.008% for LUQ-THOR. Sublethal exposures to insecticides (0.003%; LC 50 for TARGO and LC 30 for LUQ-THOR) caused a reduction in oviposition but not in mating parameters, indicating that females were more susceptible than males to reduced doses of insecticide. The mean amount of eggs deposited 5 d after feeding on the insecticide-bait mixtures was reduced up to a third compared with the amount of eggs deposited by untreated females. Both insecticides are promising bio-organic alternatives to malathion in bait control programs against A. ludens .


7.
- Artículo con arbitraje
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Reasons for success: rapid evolution for desiccation resistance and life-history changes in the polyphagous fly Anastrepha ludens
Tejeda, Marco Tulio ; Arredondo, José (coaut.) ; Liedo Fernández, Pablo (coaut.) ; Pérez Staples, Diana (coaut.) ; Ramos Morales, Patricia (coaut.) ; Díaz Fleischer, Francisco (coaut.) ;
Contenido en: Evolution Vol. 70, no. 11 (November 2016), p. 2583–2594 ISSN: 1558-5646
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Species that exhibit broad ranges of distribution may successfully navigate environmental changes by modifying some of their life-history traits. Environmental humidity imposes a critical stress that organisms may overcome by increasing their resistance to desiccation. We used experimental evolution to investigate adaptation to desiccation in the tephritid Anastrepha ludens, a species with high fecundity, late maturation, and long lifespan.We measured morphological, physiological, developmental as well as demographic changes involved in the adaptation to desiccation. Notwithstanding a low heritability (h² = 0.237), desiccation resistance evolved extremely rapidly and few negative trade-offs were detected. Selected flies exhibited correlated increases in longevity, body size, the amount of body lipids, and bulk water content, and in the duration of the pupal stage. Females further delayed sexual maturation, decreased daily fecundity but retained high lifetime reproductive potential. No differences in male mating competitiveness were found. Selected and control lines differed in longevity but not in total female fecundity, demonstrating that A. ludens flies have the capability for fast adaptation to desiccation without loosing their reproductive capability. Thus, it seems that a rapid evolutionary response to desiccation in this polyphagous insect works as a buffer for environmental variation and reduces the strength of selection on reproductive traits.


8.
Tesis - Maestría
La selección como estrategia para mejorar la competitividad sexual de los machos de cría masiva de Anastrepha ludens (Díptera: Tephritidae) / Mayren Sánchez Rosario
Sánchez Rosario, Mayren ; Liedo Fernández, Pablo (director) ; Pérez Staples, Diana (asesora) ; Toledo, Jorge (asesor) ;
Tapachula, Chiapas, México : El Colegio de la Frontera Sur , 2016
Clasificación: TE/632.774 / S23
Bibliotecas: Tapachula
Cerrar
SIBE Tapachula
ECO020013515 (Disponible)
Disponibles para prestamo: 1
PDF
Índice | Resumen en: Español |
Resumen en español

Las moscas de la fruta (Diptera: Tephritidae) constituyen una de las plagas de mayor importancia en todo el mundo debido a su impacto económico directo y a las estrictas restricciones cuarentenarias impuestas por muchos países (Aluja y Mangan 2008). Las especies que mayor atención han recibido por el impacto negativo que ocasionan en la producción y comercialización de frutos, se encuentran en los géneros Anastrepha, Ragholetis, Batrocera, Toxotrypana, Dacus y Ceratitis (Hernández-Ortiz y Aluja 1993). El género Anastrepha (Schiner) es considerado el grupo más diverso de la familia Tephritidae y el de mayor importancia en América (Hernández-Ortíz et al. 2010). En México se reportan 37 especies del género Anastrepha, de las cuales solamente cuatro son de importancia agrícola: Anastrepha ludens, A. obliqua, A. striata y A. serpentina (Hernández-Ortíz 2007). La mosca Mexicana de la fruta, Anastrepha ludens (Loew), es considerada una de las plagas más severas tanto de los cítricos (Citrus spp.) como del mango (Aluja et al. 2014). Debido a su importancia, en 1992 las moscas de la fruta fueron declaradas plagas de interés público (Rull et al. 1996, Reyes et al. 2000) por lo que se implementó la Campaña Nacional Contra Moscas de la Fruta (CNCMF) (NOM-023-FITO-1995, NOM-075-FITO-1997). Esta Campaña aplica un manejo integrado de plagas con enfoque en áreas grandes donde la Técnica del Insecto Estéril (TIE) ha jugado un papel clave, logrando establecer zonas libres y/o de áreas de baja prevalencia de moscas de la fruta en el norte del país (Hendrichs et al. 2007, Liedo y Toledo 2007, Gutiérrez y Santiago 2008, Gutiérrez 2010).

Índice

I. Introducción
II. Effect of artificial selection on mating competitiveness and demography of Anastrepha ludens (Diptera: Tephritidae) for sterile insect technique application
III. Discusión General y Conclusiones
IV. Literatura Citada


9.
- 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.


10.
- Artículo con arbitraje
Resumen en español

Water availability is recognized as one of the most important factors in the distribution and activity of terrestrial organisms. In the case of insects, hydric stress imposes a major challenge for survival because of the small surface-area-to-volume ratio they exhibit. In general, stress resistance is expected to co-vary positively with size; however, this pattern can become obscured in insects that exhibit sexual size dimorphism, as sexes differ in size and/or shape and have dissimilar resource allocations. In the present study, we use an allometric-based approach to (i) assess the desiccation and starvation stress resistance of teneral Anastrepha ludens flies, (ii) disentangle the relationships between resistance, size and sex and (iii) examine the adult fly body differences in water and lipid contents before and after exposure to stress. After controlling for sexual size dimorphism, an allometric increase of resistance with overall size was observed for all stress-based treatments. The scaling exponents that define the proportion of increase resistance varied with size traits and with type and degree of hydric stress. In this allometric relationship, and also in the relationships between mass and wing length and between size and teneral resources, the sexes maintained similar scaling exponents but differed in the intercepts. Males were more resistant to stress than females; this competitive advantage is probably linked to greater amounts of teneral lipids and more water use during stress.