author(s)
Hitesh Jangir, Dr. KC Kumawat, Purushotam Sharma, Deepika Yadav and Yogender Singh Ranawat

abstract
The present was conducted to evaluate Bioefficacy of insect growth regulators (IGRs) as seed protectant against lesser grain borer, Rhyzopertha dominica (Fab.) on wheat at Jobner Jaipur Rajasthan in the year 2016-17. The insect growth regulators, viz. diflubenzuron, novaluron, lufenuron, pyriproxyfen and buprofezin (in four dosage levels, viz. 1,5,10, and 15 ppm) and neem oil (in three dosage levels 0.1,0.5 and 1.0%) and neem seed kernel extract (at three dosage levels 1.0%, 2.5% and 5.0%) were evaluated. A standard check of deltamethrin 2.8 EC @ 2 ppm and an untreated control was maintained for comparison. These treatments were evaluated on the basis of adult emergence, grain damage, weight loss and developmental period at 24 hours, 30, 60, 90, 120, 150 days after storage.