Evaluación de algunos insecticidas para el control de la «polilla del tomate», Tuta absoluta (Lepidoptera: Gelechiidae) y su efecto residual sobre el parasitoideTrichogrammatoidea bactrae (Hymenoptera: Trichogrammatidae)

The «tomato moth», Tuta absoluta (Meyrick) is one of the key pests of tomato crops in Argentina. The compatible use of chemical and biological control is the main purpose of integrated pest management. Selective pesticides that can be successfully used to control pest without adverse side effects on...

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Bibliographic Details
Published inRevista de la Sociedad Entomológica Argentina Vol. 65; no. 3-4
Main Authors RIQUELME VIRGALA, María B, BOTTO, Eduardo N, LAFALCE, César
Format Journal Article
LanguageSpanish
Published La Plata Sociedad Entomológica Argentina 01.01.2006
Subjects
Abamectin
Agricultural practices
Bacillus thuringiensis
Biological control
Butterflies & moths
Chemical pest control
Chlorfenapyr
Insecticides
Mortality
Natural enemies
Parasitoids
Pesticides
Pests
Side effects
Spraying
Trichogrammatoidea bactrae
Triflumuron
Tuta absoluta
Argentina
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Summary:The «tomato moth», Tuta absoluta (Meyrick) is one of the key pests of tomato crops in Argentina. The compatible use of chemical and biological control is the main purpose of integrated pest management. Selective pesticides that can be successfully used to control pest without adverse side effects on natural enemies are highly required. The aim of this work was to evaluate the efficacy of control of T. absoluta and the residual effect on the oophagous parasitoid, Trichogrammatoidea bactrae Nagaraja of the following insecticides: triflumuron, abamectin, chlorfenapyr, and an experimental strain of Bacillus thuringiensis (Bt). Mortality of T. absoluta was evaluated every 4 days from pesticide spraying until adult emergency. The effect of pesticides on the performance of the parasitoid was evaluated at 1, 3, 7, 14 and 30 days after pesticide spraying. All insecticides tested caused >65% mortality of tomato moth 12 days after application. Only Bt had no harmful effects on performance of T. bactrae . The results obtained are useful to pesticide selection in integrated pest management programs
ISSN:0373-5680
1851-7471