Project: Plus tree Protection in the Greater Yellowstone Area
Project coordinator: Liz Davy
Contact: Liz Davy- GYCC Whitebark Pine Subcommittee Chairperson, P.O.Box 1888, Jackson, WY 83001. 307-739-5562. firstname.lastname@example.org
Cooperators:Yellowstone and Grand Teton National Parks, Gallatin, Caribou-Targhee, Beaverhead-Deerlodge, Shoshone and Bridger-Teton National Forests, Region 1,4,2 Forest Health Protection Groups.
Source of funding /amount
Supplemental funding: $34,840 from individual units
Dates of restoration efforts: June 2007
Protect WBP plus trees from mountain pine beetle attack in units that did not receive funding from their local FHP groups.
Spray Carbaryl (approved insecticide) on the plus trees that can be reached with spray equipment. Carbaryl is virtually 100% effective in protecting trees from mountain pine beetle for two years. Apply anti-aggregant pheromone (Verbenone) bubble caps on inaccessible trees. Verbenone provides mountain pine beetle protection, but is less effective than Carbaryl and is more costly because it must be applied twice a year.
Planting? If so, source of seedlings? Resistance?
All 81 trees were protected with Verbenone pouches or sprayed with Carbaryl.
Monitoring since completion of the project: Trees are visited yearly, so survival is monitored in this way.
Will outcome meet goals?: Approximately 30 plus trees on the Bridger-Teton NF were killed by mountain pine beetle due to a pesticide mixing error on the part of a spray contractor. However, seed collected from these trees prior to their death has fortunately preserved their genetic material.
Future actions/follow up?: Surviving plus trees continue to be protected. Due to a downturn in mountain pine beetle populations, some jurisdictions are using pheromones in lieu of Carbaryl spray until MPB populations build again.