Pests & diseases › Grape Berry Moth
Grape Berry Moth
Caterpillars feed inside grape berries causing premature ripening and rot.
Symptoms
- Webbing between grape berries
- Reddish-purple early-ripening berries among the unripe ones
- Caterpillar found inside damaged berries
- Secondary fungal rot following damage
Lifecycle
Two to four generations per year.
What to do
- Pheromone traps for monitoring
- Bt or spinosad sprays after bloom
If it's bad
- Carbaryl, malathion
Stop it coming back
- Mating disruption pheromone systems
- Bag clusters in fine mesh for small-scale growing
- Cleanly cultivate under vines to bury overwintering pupae
Crops it goes for
Plan the plot, track every sowing, cook the harvest
Sowing reminders and harvest forecasts for your own frost dates, the Seed Tin, Scan Centre for any label or packet, and the Potty Mouth Garden Club. Free to start.