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Identifying grape berry moth on Grape
Small purplish-brown moth; greenish-purple larvae web and feed inside grape clusters.
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Life cycle
Two to three generations per year; overwinters as pupae in leaf litter beneath vines.
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Damage to Grape
Larvae web berries together and tunnel inside, causing rot, discoloration, and premature fruit drop.
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How to treat grape berry moth on Grape
Remove and destroy infested berry clusters. Time insecticide applications to egg-laying using pheromone trap monitoring.
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Preventing grape berry moth on Grape
Clear fallen leaves and debris from beneath vines in autumn to remove overwintering pupae.