G. P. Painkra, Shiv K. Shrivastava, S.S. Shaw and Rajeev Gupta
Abstract
This experiment was undertaken during 2011-12 at Rajmohini Devi College of Agriculture & research Station, Ambikapur, of Indira Gandhi Krishi Vishwavidyalaya, Raipur ( C.G.). After 6 hour of exposure, the mortality per cent was observed maximum in phosphamidon 500 g.a.i./ha (90.0%) and it was statistically superior over control followed by monocrotophos 400 g.a.i./ha (85.0%). However, 12hrs after treatment per cent mortality of honey bees was recorded higher in cartap hydrocloride 300 g.a.i./ha( 60.0%) followed by profenophos 500 g.a.i./ha Whereas the mortality in monocrotophos 400 g.a.i./ha was 12.5 per cent followed by phosphamidon 500 g.a.i./ha (10.0%), neem oil 2500 g.a.i./ha (2.5%). After the exposure of 24 hour, the per cent mortality was observed highest in fenvalerate 200 g.a.i./ha (77.5%). Whereas, less mortality was recorded in monocrotophos 400 g.a.i./ha (2.5%) as well as in fipronil 50 g.a.i./ha (2.5 %), neem oil 2500 g.a.i./ha (2.5%) but no mortality was noticed in control treatment.