Population dynamics of insect pests on six okra varieties in Peshawar
Rasheed Akbar, Imtiaz Ali Khan
Whitefly, Bemisia tabaci (Genn.) (Hemiptera: Aleyrodidae) and aphids, Aphis gossypii (Glov.), (Hemiptera: Aphididae) pose heavy threat to okra in Peshawar each year. For efficient control of insect pests of okra, study of its population densities is very important. In the present research work population densities of B. tabaci and A. gossypii were determined on six okra varieties in Peshawar in 2014. The experiment was conducted in Randomized Complete Block Design with three replications. The results revealed that overall mean density of B. tabaci was significantly higher on Malay (2.27 individuals/leaf) and lower on F1H (1.86 individuals/leaf). Overall mean density of the A. gossypii was significantly higher on Malay (2.13 individuals/leaf) and lower on Arizona (1.75 individuals/leaf). Population of both the pests peaked in June-July, 2014. The findings of the present research will lay down a base for developing efficient control strategies against the insect pests of okra in Peshawar.