EFFECT OF HOST KIND ON THE EFFICIENCY OF SOME INSECTICIDES ON COLORADO POTATO BEETLE

The results of studying effect of host kind (Potato and Eggplant) on the efficiency of Methoxyfenozide 240 SC, Deltamethrin 2.5%EC, Indoxacarb 150 SC and B.thuringensis var. Alesti on larvae and adults of Colorado potato beetle, showed that all the tested insecticides produce a superior effect on larvae and adults reared on potato in comparison with those reared on eggplant. The Deltamethein LC50 reached 0.005% on larvae and adults reared on potato followed by Indoxacarb while the LC50 of Deltamethrin and Indoxacarb reached 0.007 and 0.008% respectively on the larvae and the adults reared on eggplant.