The life history of black grass bugs allows several management strategies to be effective. The winter is spent as an egg laid in the stems of host grasses. The eggs hatch in the spring when the grasses begin to grow. Egg hatch occurs early in the spring at lower elevations, and progressively later at higher elevations. One generation of black grass bugs is produced each year.
Nymphs feed and molt five times before becoming adults.
It usually takes four to five weeks from egg hatch to the appearance of adult Insects. Bug numbers begin to decline about four weeks after adults appear as they lay eggs and then die. The time span of the population is regulated by temperature, with adults maturing more quickly at higher temperatures. Most females in a population do not have fully developed wings, which means they do not readily disperse to and colonize new areas. Labops black grass bug.