Évaluation des effets de deux bio-insecticides (Tracer et Sincocin) sur Aphis gossypii (Homoptera : Aphididae) et ses complexes parasitaires.

Abstract

Plant protection uses chemical control, which remains the most appropriate mean in the fight against natural enemies, plants peppers infested with a Aphis gossypii are treated with two bio-insecticides, Tracer and Sincocin with two doses for each product.The observations are realised on 7 days, pests (the aphids) and four natural enemies of these pests which are beetles, hoverflies, parasitoids and midges in the adult level. The results revealed that both bio-insecticides cause mortality, natural enemies (ladybirds and hoverflies) are weakly sensitive to both products; however, parasitoids and midges are very sensitive. Also, the Tracer is more effective than Sincocin.