Management of Bemisia tabaci and Consequent Spread of Tomato leaf curl virus with Certain Insecticides in Tomato

摘要

Field trials were conducted to evaluate the efficacy of insecticides against Bemisia tabaci and ToLCV incidence in tomato during summer seasons of 2008 and 2009. Among the insecticides, profenophos @ 500 g a.i/ha and thiamethoxam @ 25 g a.i/ha effectively controlled the whitefly population and reduced the ToLCV incidence and improved the yield of tomato fruits. Higher net returns of Rs.83,070/- and Rs. 79,580/- were also realized with Profenophos and thiamethoxam sprays with maximum costibenefit ratio of 1:5 and 1:4:95, respecitvely.