Bio-efficacy of Biorational Pesticides for the Management of Sucking Pests of Soybean Glycine max (L.) Merrill

Abstract

An experiment entitled “Bio-efficacy of biorational pesticides for the management of sucking pests of soybean Glycine max (L.) Merrill” was conducted at ARS, Kasbe Digraj, Sangli, during Kharif, 2024.  Nine treatments viz., Metarhizium anisopliae 1.15% WP, Spinosad 45% SC, Emamectin benzoate 5% SG, Imidacloprid 17.80% SL, Thiamethoxam 25% WG, Azadirachtin 1% EC, Clothianidin 50% WDG, and Beauveria bassiana 1.15% WP along with an untreated control for comparison were evaluated in Randomized Block Design (RBD) with three replications. The efficacy of biorational pesticides against whitefly (Bemisia tabaci) revealed that Thiamethoxam 25% WG at 2.5 g/L was the significantly superior treatment, recording the lowest mean population of 0.88 adults/ 3 leaves and was statistically at par with Imidacloprid 17.8% SL at 0.25 ml/L (1.29 adults/ 3 leaves) and Clothianidin 50% WDG at 0.25 g/L (1.41 adults/ 3 leaves). Similarly, Thiamethoxam 25% WG at 2.5 g/L was the most effective treatment for the management of jassids (Empoasca kerri), with the lowest mean population of 1.35 jassids/3 leaves.