Summarization of insecticide efficacy evaluations for tarnished plant bug management in Mississippi indicate that there is a trend for decreased efficacy for commonly used insecticides and insecticide classes over time. Results indicate that Mississippi tarnished plant bug populations are variable in respect to insecticide susceptibility between years. There was a general trend towards increased efficacy for compounds tested with a buffer or other adjuvant except for the organocilicone based adjuvant, Kinetic.