Efficacy of biopesticides against thrips (Scirtothrips dorsalis Hood) infesting chilli (Capsicum annuum L.)

Abstract

The present investigation entitled “Efficacy of biopesticides against thrips (Scirtothrips dorsalis Hood) infesting chilli (Capsicum annuum L.)” was carried out on field during rabi season of 2018-2019 at Central Experiment Station, Wakawali. During this experiment total six biopesticides tested viz., Metarrhizium anisopliae 2×108 cfu/ml @ 2.5ml/lit, Beauveria bassiana 2×108 cfu/ml @ 5ml/lit, Lecanicillium lecanii 2×108 cfu/ml @ 4ml/lit, Nomuraea rileyi 2×108 cfu/g @ 1g/lit, Bacillus thuringiensis 3.5% ES @ 2ml/lit, Pongamia oil 2% EC @ 10ml/lit, respectively. The results regarding overall mean of three sprays against thrips revealed that the mean thrips population was reduced in the treatment Beauveria bassiana 2×108 cfu/ml @ 5ml/lit (1.87) and was significantly superior over rest of the treatments. The next effective treatment was Lecanicillium lecanii 2×108 cfu/ml @ 4ml/lit (2.14).