An Acala cotton field infested with cotton aphid, Aphis gossypii Glover, was located in mid May. Commercially available insecticides were applied at different time intervals from the day of aphid establishment, May 10, 1993. Aphid counts reached a high of 446 aphids per leaf in the untreated plots. Due to the severity of damage inflicted, the untreated plots were split into Capture and Thiodan which were treated at 37 days untreated (DU) and 44 DU respectively. Highest yields and gin turnouts were obtained by the two earliest applications, Capture at .0625 lbs AI/A plus Temik at 2.1 lbs AI/A and Capture alone at .0625 lbs AI/A, both applied at 25 DU.