Impact of chemical insecticides against chilli thrips (Scirtothrips dorsalis) and cost benefit ratio in Allahabad: A review

Abstract

Efficacy of insecticidal management practices using different insecticides were tested against insect pests of chilli thrips (Scirtothrips dorsalis) and cost benefit ratio. Intensive cultivation of input responsive high yielding varieties and hybrids and sole reliance on insecticides are the common features of chilli cultivation in Guntur district in Andhra Pradesh. Sanap and Nawale investigated the efficacy of 9 insecticides against Scirtothrips dorsalis on chilli (Capsicum annuum) (cv. NP-46-A) in Maharashtra. Prasad evaluated the bioassayed against nymphs of Scirtothrips dorsalis representing populations from Guntur (GNT), Warangal (WGL) and Vizianagaram (VZM) in Andhra Pradesh, identified as areas of high, medium and low insecticidal use. Varghese and Mathew evaluated the bioefficacy of newer insecticides against the sucking pests of chilli and safety of these insecticides to natural enemy population in chilli ecosystem.