Christmas tree (Pine)-European pine shoot moth

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 1)
  • chlorpyrifos (Lorsban Advanced, Warhawk and others)-Restricted use pesticide. (Group 1)
  • diflubenzuron (Dimilin 25W)-Restricted use pesticide. (Group 15)
  • flubendiamide (Belt SC)-(Group 28)
  • phosmet (Imidan 70W)-(Group 1)
  • spinosad (Blackhawk, Conserve, Entrust and others)-Some formulations are OMRI-listed for organic production. (Group 5)
  • tebufenozide (Confirm)-(Group 18)