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Laboratory evaluation of two commercial abamectin-based insecticides against Anastrepha ludens (Diptera: Tephritidae): lethal and sublethal effects

Díaz Fleischer, Francisco [autor/a] | Pérez Staples, Diana [autor/a] | Valle Mora, Javier Francisco [autor/a] | García Pérez, José Antonio [autor/a].
Tipo de material: Artículo en línea Artículo en línea Tema(s): Anastrepha ludens | Moscas de la fruta | Insecticidas biológicos | Avermectinas | Control integrado de plagasTema(s) en inglés: Anastrepha ludens | Fruit flies | Biological insecticides | Avermectins | Pests integrated controlNota de acceso: Disponible para usuarios de ECOSUR con su clave de acceso En: Journal of Economic Entomology. volumen 109, número 6 (October 2016), páginas 2472-2478. --ISSN: 1938-291XNúmero de sistema: 58062Resumen:
Inglés

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 .

Recurso en línea: http://jee.oxfordjournals.org/content/109/6/2472.long
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Disponible para usuarios de ECOSUR con su clave de acceso

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 . eng

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