Residual effect of imidacloprid and pymetrozine on orientation behaviour of Lysiphlebus fabarum Marshall, a parasitoid of the black bean aphid Aphis fabae Scopoli

For suitable insecticides selection in integrated broad bean aphid management, testing their side-effects on Lysiphlebus fabarum Marshall is needed. Therefore in this research, sublethal effect of imidacloprid and pymetrozine were investigated on orientation behavior of sexual population of L. fabarum using olfactometer device. Mated females ( 0.05) compared to pymetrozine and control tratments, they were significantly attracted to volatiles of leaves contained aphids and honeydew and leaves contained honeydew (P