Central Insecticides Laboratory, Directorate of Plant Protection, Quarantine and Storage, NH-IV, Faridabad-121001, India.
The efficacy of synthetic pyrethroids on sesamum was evaluated. Resultsshowed that the knockdown effect of pyrethroids was more than quinalphos against Antigastra catalaunalis (Dup.). Deltamethrin 12.5 g and cypermethrin 60 g effectively persisted on the sesamum plant for 15 days followed by fenpropathrin 100 gand fluvalinate 75 g for 10 days and fenvalerate 75 g and quinalphos 500 g a.i./ha for 7 days to check the pest multiplication. Cypermethrin, deltamethrin, fenpropathrin and fluvalinate reduced the pod infestation efficiently. Fifteen days spray interval schedule was best compared to 10 and 20 days.
