Effect of Insect Growth Regulators on Reproduction of the spotted leaf beetle Henosepilachna vigintioctopunctata F.

Ovicidal activity of three insect growth regulators (IGRs), viz., diflubenzuron, tefiubenzuron and flufenoxuron were studied in the spotted leaf beetle, Henosepilachna vigintioctopunctata. All three IGRs caused complete inhibition of egg hatch while feeding on treated leaves. And when the same adults were transferred to untreated brinjal leaves, sterile eggs were laid by the adults previously provided with tefiubenzuron. Adults treated with diflubenzuron and flufenoxuron recovered irom reproductive inhibition when later fed with untreated leaves.