Crops Affected: Grapes, cane berries, currents, olives, cherries, prunes, persimmons, pomegranates, carnations

States Affected: CA

Life Cycle: Also called Berry and Vine Moth, this invasive species poses a high risk to vineyards. Silken pupae overwinter hidden beneath bark, in soil cracks, or on trellis posts. Males emerge at bud break, females a week later. Adults stay concealed during the day, flying at dusk. First generation eggs are attached individually to flat surfaces near flower clusters. Larvae web flower parts and consume them. Later generation females lay eggs on shaded berries, and larvae burrow into and consume the berries. Larval development lasts 20-30 days, followed by pupation. Climate determines 2-4 generations annually.

Damage: During May and June, first-generation larvae weave webs and consume flower clusters. Second-generation larvae (July-August) feed on green berries, consuming the flesh and leaving the skin and seeds behind. The most substantial damage occurs with third-generation larvae (August-September), as they create webs and feed within berries and clusters, contaminating them with frass.
Berry damage makes them susceptible to bacterial and fungal infections and secondary infestations from other pests.

Season to Trap: May to August

How To Use: Hang trap with lure inside at shoulder height near at risk or affected crops. Replace lures every 30 days through the season, and replace traps when 70% saturated. Adult males are attracted to the pheromones in the lure and the color of the traps in this kit. Once they land on the sticky trap, they become ensnared, never to mate or lay eggs again.

Additional IPM Solutions: Avoid practices that destroy or disrupt native beneficial insects. If any of this species is captured, report it to your county department of agriculture immediately.