Ecology, Environment and Conservation Paper

Vol 22, Issue 1, 2016; Page No.(451-454)

CONTACT TOXICITY OF SOME COMMONLY USED INSECTICIDES AND NEW MOLECULES AS PER RECOMMENDED DOSE FOR CROP PESTS AGAINST INDIAN HONEY BEE, APIS CERANA INDICA FABR. IN LABORATORY CONDITION

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.

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