RELATVE TOXICITY OF SOME INSECTICIDES AGAINST OKRA FRUIT AND SHOOT BORER EARIAS VITTELLA (FAB.)
R.P. NAN *
DEPARTMENT OF ENTOMOLOGY, MAHAR ANAPRATAP UNIVERSITY OF AGRICULTURE & TECHNOLOGY, UDAIPUR-313 001, INDIA.
H.C.L. GUPTA *
DEPARTMENT OF ENTOMOLOGY, MAHAR ANAPRATAP UNIVERSITY OF AGRICULTURE & TECHNOLOGY, UDAIPUR-313 001, INDIA.
*Author to whom correspondence should be addressed.
Abstract
The lethal doses of insecticides namely, profenofos, ethion and beta-cyfluthrin were evaluated against 3, 6 and 9 days old larvae of Earias vittella (Fab.) by residue film method. The beta-cyfluthrin was found to be the most effective insecticide having LCso value of 0.00537, 0.00574 and 0.00629% and relative toxicity of 12.4990, 13.4907 and 14.7519 in comparison to ethion against 3, 6 and 9 days of larvae, respectively. This was followed by profenofos and ethion.