Lethal effects of λ-cyhalothrin and Emamectin benzoate in Plexippus paykulli (Araneae: Salticidae)

In the present study, effects of lambda-cyhalothrin and emamectin benzoate on survival, locomotion, avoidance behaviour and growth of Plexippus paykulli Savigny Et Audouin, 1827 were studied. P. paykulli was found highly susceptible against the recommended field rate concentration of lambda-cyhalothrin. The pesticide affected survival, locomotion and growth of the spiders. On the other hand, emamectin benzoate showed a negligible effect on spiders survival. However, emamectin benzoate significantly affected the locomotion and growth of P. paykulli. It is concluded that although emamectin benzoate is less toxic than lambda-cyhalothrin for P. paykulli, it cannot be recommended for IPM programme.