Control of Locust Schistocerca gregaria (Orthoptera: Acrididae ) by Using Imidaclorprid

The effect of imidaclorprid IMI on the target insect pest Schistocerca gregaria and the C50 recorded, 278, 214 223, 249 and 240 mg/L for newly hatched, nymphs, Last nymphal stage Adult - and Adult - respectively. Under semifield conditions, the corresponding LC50 obtained, 221, 243, 254, 256 mg/L for newly hatched, nymphs, Last nymphal stage Adult - and Adult - respectively of S. gregaria. Also, under semi field conditions, the number of S. gregaria were significantly decreased after the IMI first applications. The infestation number obtained 1.12.1, 92.1, 133.8 and 213.6 individuals after 20, 50, 90 and 120 days as compared to 12.23.4, 363.5, 586.6 and 988.7 individuals in the control.