Lygus lineolaris, also known as the tarnished plant bug, is a common pest in crops such as cotton, soybeans, and alfalfa. Its genus name, Lygus, includes species that are similar in appearance and behavior. These include the western tarnished plant bug (Lygus hesperus) and the pale legume bug (Lygus elisus). Tarnished plant bugs are also referred to as lygus bugs, lygus plant bugs, and simply plant bugs. In addition, they are often described as piercing-sucking insects due to their feeding behavior, which involves piercing plant tissue with their mouthparts and sucking out the fluids. Effective management of Lygus lineolaris and related species is important for maintaining healthy crops and avoiding yield losses.