Several cultural methods have been used in the past to reduce the overwintering generation. Some control can be achieved by removing and destroying leaves with pupal cells in the fall. This operation must be completed 3 weeks ahead of bloom. Where grape berry moth is an annual problem, post bloom sprays of insecticides may be necessary and mid- and late summer may be needed to control the second generation. The number of spray applications depends on the amount of invested berries a grower is willing to accept.
Table grapes require more attention that grapes grown for juice.
Sex pheromone traps may be used to monitor the emergence and flight of male moths to determine the emergence of generations and improve the timing of sprays. In general, pheromone trap catches are not a reliable method for determining pest populations in the vineyard, but the information is useful in timing insecticide sprays. Because of the spotty nature of grape berry moth infestations, a minimum of 3 traps for monitoring is recommended. Traps should be placed around the perimeter of the vineyard and should be at least 100 feet apart. Traps should be checked weekly for moths and the pheromone caps replaced monthly to obtain accurate trap information.