Population dynamics and Efficacy of selected insecticides against chilli thrips, Scirtothrips dorsalis (Hood) in Kharif

This field trail was conducted at the central field, Department of entomology SHUATS, Prayagraj during Kharif August to November 2019 entitled Efficacy of selected insecticides against chilli thrips, Scirtothrips dorsalis (Hood) in Kharif. Seven treatments were taken against the chilli thrips, Scirtothrips dorsalis i.e., T1 Fipronil 5 SC, T2 Buprofenzin 25 SC, T3 Thiamethoxam 25 WG, T4 Imidacloprid 17.8 SL, T5 Flubendamide 24% SC, T6 Triazophos, T7 Indoxacarb 14.5 SC were evaluated against chilli thrips Scirtothrips dorsalis.Among the seven treatments T4 Imidacloprid (95.83%) has significantly superior treatment followed by Thiamethoxam (93.82%), Fipronil (92.86%), Buprofezin (91.74%), Indoxacarb(89.36%), Triazophos (88.10%), Flubendamide (86.39%) was found to be least effective against the chilli thrips. The plot which is treated with the Imidacloprid (175 q/ha) followed by Thiamethoxam (110 q/ha), (105 q/ha), Buprofezin(100 q/ha), Indoxacarb (95 q/ha), Triazophos (82.5 q/ha), Flubendamide (75 q/ha) as compared to control T0 (62.5 q /ha). The highest yield was noticed in Imidacloprid 17.8L (175 q/ha). followed by Thiamethoxam 25 WG (110 q/ha).