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Summary In this study, the effects of residual deposits of active ingredients of cypermethrin and diazinon on behavioural activities of Coccinella septempunctata Linnaeus, 1758 (Coleoptera: Coccinellidae) and Aphidius uzbekistanicus Luzhetzki, 1960 (Hymenoptera: Aphidiidae) females were investigated using a video/computer recording and measurement system. In this study, 500-1000 μ /A dosages of cypermethrin and diazinon for C. septempunctata and 1000-2000 μ /A dosages of cypermethrin and 250-500 μA /A dosages of diazinon for A. uzbekistanicus were tested at laboratory conditions in 2001-2002. The results obtained from behavioural activities, indicated that walking time of the predators was much higher in diazinon treatment than that in cypermethrin treatment, Cypermethrin treatment had no effect on the speed of predators, while they often turned with high angles. In diazinon treatment, predator insects moved with high speed and changed their direction by moving in same direction with low turning angles. In cypermethrin applied areas, movement traces of C. septempunctata indicated that they often turned their own surrondings. The predator insects in high diazinon dosage applied areas had a dense movement trace. At both application dosages of cypermethrin and diazinon A. uzbekistanicus spent more time in walking and less time in resting. At high dosages, net speed of the parasitoid decreased. At high dosage of cypermethrin, parasitoid slightly changed direction with low angles, while they often A A

turkish journal of entomology

The effect of commonly used  nsecticides, cypermethrin and diazinon active  ngredients on different types of behavioural activities of Coccinella septempunctata Linnaeus, 1758 (Coleoptera: Coccinellidae) and Aphidius uzbekistanicus Luzhetzki, 1960 (Hymenoptera: Aphidiidae)