Adults emerge in April and begin laying clusters of eggs on canes. Larvae of this early generation feed on unfolding leaves and are not usually of major concern. Larvae of the second and third generations feed during the summer and are of economic importance due to berry feeding. Second and third generations are larger than the first, and egg laying occurs over an extended period of time. Growers can control for redbanded leafrollers at petal fall or when presence of the pest is detected.
Pheromone traps are available to monitor for redbanded leafroller.
Trap catches are an indication of moth activity and can be used to more accurately time insecticide applications. There are a number of cultural control practices that grape growers need to use to reduce problems caused by insect pests. Summer pruning vines to remove grape cane gallmaker and grape cane girdler before adult emergence. Use American rootstocks resistant to grape phylloxera. Maintain good weed control during the season, and eliminate weedy or trashy harborages around the vineyard that serve as overwintering sites for pests.