Rhyacionia buoliana
Pest description and crop damage Larvae stunt and deform stems, especially terminals. The moth is established in western Washington but still relatively rare in Oregon.
Sampling and thresholds Pheromone traps and degree-day models are available to monitor for adults.
Management-chemical control
Time applications to coincide with adult emergence.
- carbaryl (Sevin and others) (Group 1A)
- phosmet (Imidan 70W) (Group 1B)
- spinosad (Blackhawk, Conserve, Entrust and others) (Group 5)-Some formulations are OMRI-listed for organic production.
- tebufenozide (Confirm) (Group 18)