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5 resultados encontrados para: AUTOR: Gómez Simuta, Yeudiel
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Resumen en inglés

The sterile insect technique (SIT) may offer a means to control the transmission of mosquito borne diseases. SIT involves the release of male insects that have been sterilized by exposure to ionizing radiation. We determined the effects of different doses of radiation on the survival and reproductive capacity of local strains of Aedes aegypti and Ae. albopictus in southern Mexico. The survival of irradiated pupae was invariably greater than 90% and did not differ significantly in either sex for either species. Irradiation had no significant adverse effects on the flight ability (capacity to fly out of a test device) of male mosquitoes, which consistently exceeded 91% in Ae. aegypti and 96% in Ae. albopictus. The average number of eggs laid per female was significantly reduced in Ae. aegypti at doses of 15 and 30 Gy and no eggs were laid by females that had been exposed to 50 Gy. Similarly, in Ae. albopictus, egg production was reduced at doses of 15 and 25 Gy and was eliminated at 35 Gy. In Ae. aegypti, fertility in males was eliminated at 70 Gy and was eliminated at 30 Gy in females, whereas in Ae. albopictus, the fertility of males that mated with untreated females was almost zero (0.1%) in the 50 Gy treatment and female fertility was eliminated at 35 Gy. Irradiation treatments resulted in reduced ovary length and fewer follicles in both species. The adult median survival time of both species was reduced by irradiation in a dose-dependent manner. However, sterilizing doses of 35 Gy and 50 Gy resulted in little reduction in survival times of males of Ae. albopictus and Ae. aegypti, respectively, indicating that these doses should be suitable for future evaluations of SIT-based control of these species. The results of the present study will be applied to studies of male sexual competitiveness and to stepwise evaluations of the sterile insect technique for population suppression of these vectors in Mexico.


2.
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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

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.


3.
- Artículo con arbitraje
Resumen en: Inglés |
Resumen en inglés

The use of ionizing irradiation or the use of hot water treatment (HWT) has been demonstrated as a successful commercial phytosanitary treatment during the past two decades. Several countries currently use this technology for commercial treatments to meet plant quarantine requirements. However, hydrothermal treatment has been found to significantly affect the firmness of “Ataulfo” mango fruit, the susceptibility to damage by cold and it also accelerates their maturation. In this study, we focused on the effect of irradiation doses on the sensorial quality and the physiochemical properties of mango cv “Ataulfo” compared with the traditional hot water treatment. We found that doses of 150 Gy and 300 Gy of gamma radiation can be applied successfully as well as the hot water treatment. There was no significant difference in between irradiation treatments in terms of weight loss, external and internal color, pH, soluble solids, titratable acidity and firmness, and consumer's acceptance. There was no adverse effect of color appearance, odor and flavor, indicating that consumers will have the willingness to buy and consume irradiated mangoes. Irradiation of mangoes can be a successful post-harvest treatment as an alternative to the hot water treatment.


4.
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Influence of methoprene on pheromone emission and sexual maturation of Anastrepha obliqua (Diptera: Tephritidae) males
Muñoz Barrios, Rodolfo ; Cruz López, Leopoldo Caridad (coaut.) ; Rojas, Julio C. (coaut.) ; Hernández Ortiz, Emilio (coaut.) ; Liedo Fernández, Pablo (coaut.) ; Gómez Simuta, Yeudiel (coaut.) ; Malo Rivera, Edi Álvaro (coaut.) ;
Contenido en: Journal of Economic Entomology Vol. 109, no. 2 (April 2016 ), p. 637-643 ISSN: 1938-291X
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Resumen en: Inglés |
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It has been demonstrated that the application of juvenile hormone analog, methoprene, reduces the time required for sexual maturation and enhances mating success in several species of tephritid fruit flies. This study examined the effect of different concentrations of methoprene incorporated into the diet of adult flies and distinct sugar:protein (S:P) ratios on sexual maturity and pheromone emission of Anastrepha obliqua males. Diets with 0.2 and 0.5% of methoprene accelerated sexual maturation of males compared with untreated males. In subsequent assays, the enhancement of male pheromone emission and sexual maturation by the incorporation of 0.02% methoprene into a 24:1 (S: P) diet was confirmed. Among the volatiles released by males, (Z)-3-nonenol and (Z,Z)-3,6-nonadienol were emitted at higher quantities by flies treated with methoprene than untreated ones. The results show that methoprene accelerates sexual maturation of mass-reared A. obliqua males and in- creases their mating propensity. This would reduce the time required to attain sexual maturation by sterile males, thus decreasing fly handling costs and improving the efficacy of the sterile insect technique.


5.
Capítulo de libro
Irradiación de larva huesped para evitar la emergencia de moscas de Anastrepha ludens (Diptera: tephritidae) en la cría masiva de Diachasmimorpha longicaudata (Hymenoptera: braconidae)
Toledo, Jorge (autor) ; Cancino Díaz, Jorge Luis (autor) ; Ruíz Salazar, Lía (autora) ; Gómez Simuta, Yeudiel (autor) ;
Clasificación: S/632.774 / I77
Contenido en: Memoria: XXX congreso nacional de entomología Distrito Federal, México : Sociedad Mexicana de Entomología, 1995 páginas 19-20
Bibliotecas: San Cristóbal , Tapachula
Cerrar
SIBE San Cristóbal
SER000921 (Disponible)
Disponibles para prestamo: 1
Cerrar
SIBE Tapachula
19635-20 (Disponible)
Disponibles para prestamo: 1