Abstract
The effects of the insecticides abamectin, acetamiprid, cartap and chlorpyrifos on larvae, pupae (within the host egg) and adults of the egg parasitoid Trichogramma pretiosum Riley (Hym.: Trichogrammatidae) were evaluated under laboratory conditions, using three standard tests described by IOBC. When sprayed on the immature stages of this parasitoid, cartap and chlorpyrifos proved to be the most harmful insecticides, affecting both the emergence success and parasitism capacity of this parasitoid, whereas abamectin and acetamiprid were selective. Abamectin was harmful to adults (residue test on glass plates), slightly harmful to larvae, and moderately harmful to pupae (sprayed on the immature stages within host eggs Anagasta kuehniella (Zeller)); acetamiprid was moderately harmful to adults, harmless to larvae, and slightly harmful to pupae; cartap was harmful to adults, moderately harmful to larvae and harmful to pupae; chlorpyrifos to adults, harmless to larvae and harmful to pupae.
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Abbreviations
- IOBC:
-
International Organization for Biological Control
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Moura, A.P., Carvalho, G.A., Pereira, A.E. et al. Selectivity evaluation of insecticides used to control tomato pests to Trichogramma pretiosum . BioControl 51, 769–778 (2006). https://doi.org/10.1007/s10526-006-0001-x
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DOI: https://doi.org/10.1007/s10526-006-0001-x