Side effect of some insecticides on egg parasitoits, trichogramma species using in agricultural control

In this study, that the side effect of different doses of the Spinosad, Spinetoram and Bacillus thrungiensis subsp kurstaki insecticides on the larvae and pupae stages of egg parasitoits Trichogramma pintoi and T. evanescens species on Ephestia keuhniella were investigated. Some biological properties were also determined such as parasitization and emergence rate, and adult lifespan on unparasited E. kuehniella eggs. Spinosad and spinetoram showed high toxic effects on parasitized eggs in early (larval period) and late (pupa) period by dipping insecticide application but B.t. subsp kurstaki did not show high toxic effects. High toxic effect of Spinosad and Spinetoram continued by surface spraying, by which egg parasitoits started to die with in one hour but B.t. subsp kurstaki did not show any high toxic effect on parasitoits. As a result of this investigation was determined that B.t. subsp kurstaki can be used safely with the parasitoit wasps Trichogramma pintoi and T. evanescens.