Application of fungicides and Trichoderma viride in management of soybean pod blight complex

Abstract

Two year (2016 & 2017) field trial was carried out to determine which combination of fungicides and Trichoderma viride either for seed treatment or foliar application are most effective in minimizing the pod blight caused by Colletotrichum truncatum. Amongst, Seed treatment with carboxin 37.5 % + thiram 37.5 % @ 2 g/kg seed plus spray with thiophanate methyl 70 % WP @ 0.1 % at 55 and 75 DAS was found to be superior as recorded lowest pod infection followed by seed treatment with cabendazim 12 % + mancozeb 63 % @ 2 g/kg seed plus spray with thiophanate methyl 70 % WP @ 0.1 % at 55 and 75 DAS and seed treatment with Trichoderma viridae @ 5 g/kg seed plus spray with thiophanate methyl @ 0.1 % at 55 and 75 DAS, respectively. These combinations were also found impressive in improving seed germination as well as yield in comparison with untreated check. All the treatments were found effective in reducing pod blight infection and recorded 11.9 to 71.1 and 13.1 to 67.2 per cent disease control during 2016 and 2017, respectively.