Vol. 11, Special Issue 9 (2022)

Author(s):
Ashithosh Mohanan, Gajendra Chandrakar, Krishna Gupta and Hemlata

Abstract:
Investigation was undertaken during 2020 and 2021 on experimental field of research cum instructional farm of Indira Gandhi Krishi Vishwavidyalaya, Raipur (C.G.) to study the bio-efficacy of newer insecticide against Spodoptera litura. infesting cabbage. The cabbage crop was raised by following recommended package of practices except for plant protection measures. Highest Percent reduction of Spodoptera litura population over untreated control was observed in treatment no. (T4) i.e Spinetoram 12% SC w/v (11.7% w/w) SC @ 67.5 g.a.i./ha. (78.43%) followed by (T3) Spinetoram 12% SC w/v (11.7% w/w) SC@ 54 g.a.i/ha, (76.14%).There was minimum percent reduction of Spodoptera litura population (50.00%) over untreated control in treatment no. (T1) i.e. Spinetoram 12% SC w/v (11.7% w/w) SC @ 36 g.a.i./ha. The highest increase in yield over control was observed in treatment no. (T4) i.e Spinetoram 12% SC w/v (11.7% w/w) SC @ 67.5 g.a.i. /ha (73.63%) followed by treatment no. (T3) Spinetoram 12% SC w/v (11.7% w/w) SC @ 54 g.a.i./ha, (65.04%).