Organophosphates, pyrethroids, tank mixes, and other insecticides were compared for efficacy against the boll weevil in Lonoke county, Arkansas over a nine year period. Results from all of these tests have been compiled and summarized to show each treatment's relative performance. Boll weevil control was calculated from damage levels in the treated plots compared to the untreated. Each insecticidal treatment was grouped into one of six categories based upon its chemical makeup. The best performing groups included: fipronil (Regent), averaging 64 percent control; pyrethroids, averagin 65 percent control; and tank mixes, averaging 66 percent control. Other groups included; organophosphates, averaging 36 percent control; endosulfan (Phaser/Thiodan), averaging 45 percent control; and oxymyl (Vydate) averaging about 48 percent control.