Assessing pesticidal formulation for lambda-cyhalothrin content

Regular quality control of pesticide is essential to ensure purity of active ingredient in the formulation as claimed on the label of the container. In the present study , two samples of 5 per cent commercially available Emulsifiable Concentrate (EC) formulations of synthetic pyrethroid insecticide lambdacyhalothrin were tested for the concentration of active ingredient as per Bureau of Indian standards (BIS) specifications. It was observed that the active ingredient content was within the range 5.06 and 5.22 per cent, as against 4.75 to 5.50 per cent, specified by BIS. Thus the estimated concentration of lambdacyhalothrin in the formulation was more or nearly equal to the standard requirement of 5 % as claimed on the label of the container.