Vol. 2, Issue 11 (2014)

Author(s):
Piyush Kant Netam

Abstract:
With a view to find out the relative bio-efficacy of different insecticides against tobacco leaf eating caterpillar, Spodoptera litura (Fab.) infesting soybean under field condition, field trial was carried out at Instructional Farm, Sant Kabir College of Agriculture and Research Station, Kawardha District Kabirdham IGKV, during Kharif season of 2012. Six insecticides were applied as broadcast and foliar spray to manage the infestation of tobacco caterpillar in soybean. The result of applications of six different insecticidal treatments against tobacco leaf eating caterpillar, S. litura (Fab.) revealed that the treatment with the efficacy of six insecticides on mean caterpillar population varied in methomyl (poison bait) treatment which minimum 0.64 percent and the maximum was 1.32 per plant which was methomyl (foliar spray) treatment on compared to 2.56 percent mean population in control. The effect of insecticides on means number of healthy pods per plant also varied maximum (87.04) in methomyl (poison beat) while minimum (72.4) in methomyl (foliar spry) were found less effective in controlling the pest as compared to 68.4 pods/plant in control.