Vol. 12, Issue 12 (2023)

Author(s):
OB Khot, Dr. VP Sawant, Dr. RS Mule, Dr. VA Rajemahadik and AB Narayankara and SS Mali

Abstract:
An experiment was conducted at Instructional Farm, Department of Agronomy, College of Agriculture, Dapoli, Dist. Ratnagiri, during the Kharif 2022. The trial was set up in randomized block design with three replications using rice variety Karjat 8. The cumulative mean percent infestation of six insecticide treatments after two sprays revealed that, the treatment Spinosad 45 SC @ 0.2 ml lit^-1 was found most effective in controlling the blue beetle infestation (2.69%). The next best treatment was Emamectin benzoate 5 SG @ 0.25 gm lit^-1 with 3.87 percent blue beetle infestation and was at par with Flubendiamide 39.35 SC @ 0.1 ml lit^-1 (4.01%), Indoxacarb 14.5 SC @ 0.5 ml lit^-1 (4.89%) and Lambda cyhalothrin 5 EC @ 0.5 ml lit^-1 (5.02%). The treatment Quinalphos 25 EC @ 4.0 ml lit^-1 recorded 5.47 percent blue beetle infestation. The maximum infestation was noticed in the untreated control (14.30%).