Statistical Evaluation Of The Larvicidal Effect Of Diflubenzuron On Culex Pipiens Larval Stages

Abstract

Difl ubezuron is increasingly used in areas where mosquito larvae developed resistance to other insecticides. In our community difl ubenzuron is not used to control mosquito larvae. Two formulations of 1% difl ubenzuron (on corn-cob EF-1, and zeolite EF-2) were tested on Culex pipiens L (larvae) on one canal in the Belgrade suburb area. The effect was followed for seven weeks after application of the formulations. Formulation EF1 achieved a reduction in mosquito L 1 L 2 larvae between 23.9% and 89.4%. Between the two used formulations there was no signifi cant difference in the number reduction of lower larval stages, but for the higher larval stages EF1 proved to be more effi cient.