Field Efficacy of Newer Insecticide Molecules against Pomegranate Thrips and their Impact on Natural Enemies

Abstract

The field experiment was conducted at Agroforestry Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, Dist: Banaskantha, Gujarat, India to assess the efficiency of newer insecticide molecules against pomegranate thrips and their impact on natural enemies (spider) during 2021-22 to 2023-24. Though, farmers are using number of insecticides but the control of thrips is not at remarkable level. Therefore, it is necessary to carried out to examine the efficacy of newer insecticides molecule against management of pomegranate thrips and their effect on natural enemies in filed conditions. A Randomized Block Design was used with seven treatments viz., Cyantraniliprole 10.26% OD @0.75 ml/L, cyantraniliprole 10.26% OD@0.90 ml/L, lambdacyhalothrin 5% EC@0.5 ml/L, lambdacyhalothrin 5% EC@1.0 ml/L, fipronil 5% SC@1.0 ml/L, spinosad 45% SC@0.25ml/L, and an untreated control with three separate replications.  Each treatment consists of one plant of the pomegranate (variety Bhagwa) maintained at a spacing of 4.0 x 4.0 m for fruit production in the hasta bahar season. The first spray was carried out at the 50% flowering and second spray was carried out 15 days after first spray. The pooled results of three years data revealed that two spray of cyantraniliprole 10.26% OD @ 0.90 ml/L at 15 days interval recorded the lowest thrips population (2.97 thrips/twig) and found to be significantly superior over rest of treatments during the hast bahar season. It was followed by cyantraniliprole 10.26% OD @ 0.75 ml/L (3.89 thrips/twig). The pooled results of occurrence of spider revealed maximum spider population (0.72 spider/twig) was found in untreated control. It was followed by spinosad 45% SC@0.25ml/L and cyantraniliprole 10.26% OD @ 0.75 ml/L which recorded 0.48 and 0.36 spider/twig, respectively.