Department of Entomology, Acharya N.G. Ranga Agricultural University, Hyderabad, Andhra Pradesh-500 030, India
*Corresponding author's E-mail: gajula_sridevi@yahoo.com
Online published on 9 April, 2012.
Against third instar LC50 values based on bioassay studies indicated that among the insect growth regulators, viz., buprofezin, lufenuron, novaluron and the check diflubenzuron the highest relative toxicity was exhibited by novaluron at 76 hours and lufenuron at 96 and 120 h of exposure by topical application. novaluron exhibited greater toxicity irrespective of the time of exposure when sandwich method was used and Lufenuron was intermediary in toxicity.
Spodoptera litura, Insect growth regulators and relative toxicity
