author(s)
KL Painkra and Birjhu

abstract
The present investigation was carried out in the laboratory of Department of Entomology, RMD College of Agriculture and Research Station, Ambikapur (C.G.) during Kharif 2019. Six different modern insecticides along with one untreated control were taken for the investigation to test their bio-efficacy against Bihar hairy caterpillar Spilosoma oblique (Walker). The experiment was carried out in completely randomized block design (CRD). All the treatments were replicated three times. Observations were recorded 12, 24 and 48 hours after application of insecticides. The sample consisted of 10 larvae of Bihar hairy caterpillar per replication. All the treatments were found superior over control. Maximum mortality percentage was recorded on Emamectin benzoate + Thiamethoxam 3.0%+12.0% WG (66.19%) which was superior, followed by Emamectin benzoate 5% SG (56.61%) and Cartap hydrochloride 50% SP (47.03%). Whereas, the least effective treatment was in Chlorfluazuron 5.4% EC recorded with (30.13%) minimum percentage of larval mortality.