Wingspan of 30-40 mm. Forewings sandy-rufous to purplish red-brown usually with the median area often darker. Dark markings in the shape of the Hebrew
character Nun are usually present. Hindwings are pale greyish-brown.
Larvae
Final instars reach 42-47 mm in length. Body green with fine white dorsal and sub-dorsal lines and a broad white spiracular stripe edged above with black. Head is bright
green and spiracles white ringed with black.
Eggs
Hemispherical, finely ribbed and greenish-white when laid, becoming darker with age. Laid in loose batches.
Distribution
Europe and parts of Asia.
Economic Host(s)
Orchard trees and broadleaved trees and shrubs.
Symptons/Signs
Larvae defoliate trees and will also feed on developing buds, shoots and fruitlets.
Generations
1
Monitoring
Adults Present
April to July (climate dependant)
Recommended Trap Density
1-2 traps per hectare in large plantations or 3-4 traps in small, low density or well spread stands.
Trap Maintenance
Check traps on a regular basis; at least twice a week. Replace the pheromone dispensers every 4 weeks to achieve optimum results.
Storage
Keep product away from heat and direct sunlight. Store in a refrigerator for a shelf life of 18 months or a freezer for an extended life of 24 months. Always store sealed in
original packaging.
