Evaluation of Ethiodemethrin 2.5% EC and Karate 5% against Citrus Leafminer at Metahara Citrus Orchard

Abstract

The study was conducted at Metahara Sugar Factory Citrus orchard fields in 2010/11 cropping season with the objective of evaluating the efficacy of Ethiodemethrin 2.5% EC and Karate 5% for the control of citrus leafminer. In this study, seven treatments were used i.e. Ethiodemethrin 2.5% EC at 20, 30 and 50 ml per tree and Karate 5% EC at 0.72 and 1.10 ml per tree including free checks. Treatments were given at once and twice application frequencies; the second application was applied after fifteen days of the first application. The experiment was laid out in randomized complete block design with four replications. The study indicated that Ethiodemethrin 2.5% EC at 20, 30 and 50 ml tree-1 and Karate 5% EC at 0.72 and 1.10 ml tree-1 had satisfactory control potential of citrus leafminer (CLM) for a maximum of two weeks period as compared to the untreated check. Therefore, the orchard could use Ethiodemethrin 2.5% EC at 20 ml tree-1 and Karate 5% EC at 0.72 ml tree-1 for the control of leafminer. Moreover, using single control tactics does not provide utmost control of CLM in the orchard.