Five separate tests were conducted in 1998 at the Southeast Research and Experiment Station near Rohwer, AR to test the efficacy of traditional and new insecticides against cotton bollworm and tobacco budworm. Terminal, square and boll inspection was used to assess the efficacy of insecticides as indexed by worm count and damage. Our data show that Baythroid and Tracer effectively controlled cotton bollworm. Steward also showed some activity against bollworm. Tobacco budworm was well controlled by Tracer and Pirate. Tobacco budworm survival trends after treatment strongly indicate that Steward may effectively control tobacco budworm and reduce damage. Baythroid did not control tobacco budworm indicating the presence of a resistant population in southeast Arkansas. Increased lint yield was obtained with some chemicals such as Tracer, Baythroid, and Decis (bollworm tests) and Steward (bollworm and tobacco budworm tests). Increased yield in plots treated with Steward was probably due, in part, to Steward's broad spectrum activity and not entirely due to worm control.