Soybean is a wonder crop with innumerable uses in various industries as it is contributing 20% edible oil and 40% protein. However, management using chemicals is one of the mainstream steps taken in keeping defoliators below ETL. The usage of selective or newer insecticides show a reduced impact on beneficial insects. In the present situation, the experiment was conducted in farmer field in Nizamabad district in Kharif season during the years 2019 and 2020. The effect of spinetoram 11.7 SC and different newer insecticide molecules and were evaluated against Spodoptera litura and their effect on natural enemies under field conditions along with the effect on yield of crop. The insecticides viz., Spinetoram 11.7 SC, Flubendiamide 480 SC, Chlorantraniliprole 18.5 SC, 5 SG, Spinosad 45 SC and Thiodicarb 75 WP were used. The observations on no. of larvae per meter row length and natural enemy population was taken. The results showed that spinetoram 11.7 SC when applied at both 0.7ml/l and a

insecticides, Spodoptera litura, assassin bug, spider, coccinellid, spinetoram, flubendiamide, chlorantraniliprole.

In the current scenario of pest management strategies, the development of resistance to the insecticides has become the biggest challenge. Therefore, the need for implementing the usage of newer insecticide molecules for effective control is the need of the hour. As, newer molecules differ with their mode of action could be a promising option to handle the situation. The new molecule spinetoram 11.7 SC was found to be most toxic and effective in managing the pest, alongside of this flubendiamide 39.35 SC and chlorantraniliprole 18.5 SC were found to be conserving natural enemy populations. The susceptibility of Spodoptera litura to these chemicals on various crops has not been found. Thereby, time to time monitoring of the susceptibility status of these newer molecules at field level need to be examined regularly. As, farmers depend upon newer insecticides than conventional management options under the current farming scenario

Matcha, N., Duraimurugan, P. and Bhowmick, A.K. (2021). Effect of Spinetoram 11.7 SC and some Newer Chemicals against Spodoptera litura (F.) on Soybean. Biological Forum – An International Journal, 13(2): 720-724.