Efficacy of some next-generation insecticides against mustard aphid, Lipaphis erysimi (Kalt.) and their effect on natural enemies in mustard eco-system

Results revealed that flonicamid 50% WG 75 g a.i. showed lowest population of L. erysimi (16.44 and 6.55/10 cm central twig after the first and second sprays, respectively) followed by Afidopyropen 50% DC 50 g a.i. (18.09 and 7.91/10 cm central twig after the first and second sprays, respectively) and Sulfoxaflor 75 g a.i. 21.8 SC (20.53 and 9.89/10 cm central twig after the first and second sprays, respectively). Sulfoxaflor 75 g a.i. 21.8 SC was noted as safer treatment for population of Coccinellids and Syrphid flies with minimum reduction of population (29.80 and 14.84%, respectively), followed by flonicamid 50% WG 75 g a.i. (35.02 and 33.20%) and NSKE 5% (31.65 and 30.94%). and highest increase of yield (15.80 q/ha) followed by Afidopyropen 50 DC 50 g a.i. (14.93 q/ha), The highest incremental cost-benefit ratio (ICBR) was noticed in flonicamid 50% WG 75g a.i. (1:7.69), followed by Pymetrozine 50% WG 150 g a.i. (1:6.98) and Sulfoxaflor 21.8 SC 75 g a.i. (1:6.69), while the lowest ICBR (1:2.97) was observed in Afidopyropen 50% WG 50 g a.i.