Bio-efficacy Study of Lambda-cyhalothrin EW Formulation against Cnaphalocrocis medinalis on Rice: A Safer and Effective Approach

Abstract

Abstract

A field trial was conducted to evaluate Lambda-cyhalothrin new formulation emulsion-in-water (EW), which indicated that Lambda-cyhalothrin applied at 15 g a.i. ha⁻¹ was more effective against rice leaf folder (Cnaphalocrocis medinalis) as compared to the standard checks. In terms of cumulative reduction of pest incidence, Lambda-cyhalothrin treatments were found to be superior to the standard checks. Lambda-cyhalothrin 11.4% EW was identified as a superior formulation with respect to environmental hazards. Water is being used as solvent to formulate it compared to primitive practice of using naphthalene-based low volatile organic compound products for formulating emulsifiable concentrates. Hence, the dose of 15 g a.i/ha can be recommended for the effective management of rice folder with added advantages of environmental aspects.

Keywords: Lambda-cyhalothrin, rice leaf folder, EW, EC, Cnaphalocrocis medinalis