Wingspan of 20-25 mm. Forewings brown edged with transparent patches. Hindwings almost entirely transparent. Males have 4 equally spaced orange-yellow bands on the abdomen and females have 3 such bands.
Both have an orange-brown tail that fans out during flight
Larvae
Up to 20 mm long. Body creamy white with a dark dorsal longitudinal stripe (which is actually the central blood vessel). Head reddish-brown and prothoracic plate pale
brown.
Eggs
Brown eggs are laid in soil close to a host plant.
Distribution
Europe and parts of Asia.
Economic Host(s)
Rubus species, in particular, raspberry and blackberry.
Symptons/Signs
After hatching larvae bore into the tap root systems of their host to feed and hibernate. In the following spring larvae bore upwards to feed on the pith of the cane.
Generations
1
Monitoring
Adults Present
June to August (climate dependent)
Recommended Trap Density
2 traps per hectare in large uniform crop stands or 3-4 traps per hectare in mixed or less dense crops.
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 12 months or a freezer for an extended life of 24 months. Always store sealed in
original packaging.
