Residual Toxicity of 8 Different Insecticides on Honey Bee (Apis mellifera Hymenoptera: Apidae)

Abstract

The study examined the acute toxicity of eight agricultural insecticides such as Karate 5 EC (Lamdacyhalathrine), Deltanete 400 EC (Furathiocarb), Sevin 85 WP (Carbaryl), Sevin XLR plus (Carbaryl), Marshal 25 EC (Carbosulfan), Oncol EC 200 (Benfurocarb), Mesurol WP 50 (Methiocarb) and Neem Azal T/S (Azadirachtin) with 3 different doses including recommended doses (r.d), 1/2 r.d and 1/4 r.d. The mortality ratios were counted 1, 8, 16 and 24 h after each application. Research results indicated that Marshall, Oncol, Deltanate, Mesurol, Karate, Sevin XLR and Sevin WP 85 had the harmful effect on bee while Azadirachtin was environmentally friendly for controlling hazelnut pests. Research results also revealed that Sevin XLR contained the fastest insecticide toxic effects on bees. In the research conducted areas, toxic insecticides use should be avoided and Azadirachtin use should be encouraged to Hazelnut growers.