The effects of some insecticides on honeybees (Apis mellifera)

Abstract In the study, topical application (1 µl/bee), contact (5 ml/pot/10 bees) and residual effects of eight insecticides (Methiocarb, Alphacypermethrin, Indoxacarb, Spinosad, Thiacloprid + Deltamethrin, Thiamethoxam, Thiamethoxam Lambda-Cyhalothrin Zeta Cypermethrin), which are commonly used in pest control hazelnut cultivation, were investigated on Apis mellifera L. (Hymenoptera:Apidae). The study was conducted with 10 young worker bees 4 replicates. Knock-down effect 48-hour mortality determined all three methods. under 65–70% humidity 24 ± 1 o C laboratory conditions. findings demonstrated that impact low pesticides, while other two methods led to 100% after 48 hours at recommended dose. highest observed thiamethoxam lambda-cyhalothrin, thiamethoxam, zeta cypermethrin, methiocarb indoxacarb, followed by thiacloprid deltamethrin, Spinosad alphacypermethrin. Among tested for effects, cypermethrin over 90% 5 days.