Comparison of Different Plant Extract Combinations Against Jassid (Amrasca devastans) and Whitefly (Bemisia tabaci) in Okra Crop

Present study was carried out to evaluate the efficacy of different plant extract combinations against Whitefly (Bemisia tabaci) and Jassid (Amrasca devastans) on okra crop at Kalu khan district Swabi, in 2022. Treatments included a synthetic insecticide, six plant extract combinations, and control. The results revealed that the minimum number of whitefly plant-1, after 1st and 2nd spray application, was observed in plots treated with lambda-cyhalothrin (2.65 and 2.20) followed by (bakain leaf extract + neem seed extract) (3.67 and 2.74) and the maximum number of whitefly plant-1 were recorded in control (5.60 and 5.38). Similarly minimum number of jassid plant-1 after 1st and 2nd spray application was observed in plots treated with lambda-cyhalothrin (3.45 and 2.47), followed by bakain leaf extract + neem seed extract (4.13 and 3.16) and maximum number of jassid plant-1 was recorded in control (6.80 and 5.50). Lambda-cyhalothrin treated plots showed the highest marketable yield of 1359.3 kg/ha. Among plant extract combinations, the highest marketable yield of 1207.4 kg/ha was recorded in bakain leaf extract + neem seed extract, and the lowest marketable yield of 703.7 kg/ha was recorded in control plot. Lambda-cyhalothrin showed highest Cost-Benefit Ratio (1: 14.25), followed by plant extract combination bakain + neem seed extract (1: 10.49), and the lowest Cost-Benefit Ratio (1: 3.08) was recorded in eucalyptus leaf extract + neem seed extract. Therefore, It is concluded that bakain + neem seed extract should be incorporated in future IPM programs to manage the whitefly and jassid population effectively.