2024, Vol. 7, Issue 8, Part J

author(s)
Payal Kumari, Rima Kumari, Md. Rauf Anwer and Pankaj Kumar

abstract
It reveals that in 2020, the highest mean reduction in the population of Bemisia tabaci was recorded in treatment T₅, comprises a spray of Imidacloprid 17.80 SL which caused the mean reduction of 76.98, 69.34, 43.18 percent after 3, 7 and 14 days of spray, respectively with overall mean percent reduction of 63.17 percent in whitefly population. The second most effective treatment after Imidacloprid 17.80 SL was Acetamiprid 20SP (T₂). Treatment application of Acetamiprid 20SP causes a mean percent reduction of 64.82, 60.02 and 42.11 percent in the whitefly population, respectively. Following the Acetamiprid 20SP next, the best treatment was Thiomethoxam 25WG (T₇). Treatment application of Thiomethoxam 25WG causes a mean percent reduction of 66.21, 57.69 and 36.79 percent after 3, 7 and 14 days of spray, respectively in the in whitefly population. Treatment application of Acephate 95 SG causes a mean percent reduction of 58.20, 49.14 and 34.46 percent in whitefly population after 3, 7 and 14 days of spray, respectively. Treatment application of Indoxacarb 14.5SC (T₆) causes a mean percent reduction of 54.84, 51.04 and 28.85 percent in whitefly population after 3, 7 and 14 days of spray, respectively. Treatment application of Oxydemeton-methyl 25 EC (T₈) causes a mean percent reduction of 53.95, 48.36 and 23.81 percent after 3, 7 and 14 days of spray, respectively. Whereas, the treatment application of Azadirachta indica 1% EC (T₁) and Bifenthrin 10 EC (T₄) were at par to each other in there efficacy against the whitefly population and causes a mean percent reduction of 45.36, 49.31 and 14.33 and 45.45, 39.72 and 22.17 percent in whitefly population.