PG-Department of Zoology, Sanatan Dharm College, Muzaffarnagar-251 001 (India).
*Present Address: Central Insecticides Laboratory, Directorate of Plant Protection, Quarantine and Storage, NH-IV, Faridabad-121 001 (India).
Field studies were made to control Spilosoma obliqua (Walker) and Acherontia styx (Westwood) on sesamum using synthetic pyrethroids, viz, cypermethrin, deltamethrin, fenpropathrin, fenvalerate and fluvalinate, and compared with quinalphos. Deltamethrin was found to be the most petent insecticide followed by cypermethrin against both the insect species, and were effective for 15 days of spray.