USDA Forest Service:
c.1985. Region 6 Cooperative Forestry and Forest Pest Management staffs. Regional Office. Portland Oregon.
USDA Forest Service:
1988. Tree mortality caused by fir engraver. Mt. Hood National Forest, Oregon.
USDA Forest Service:
1988. Western spruce budworm defoliation. Western spruce budworm control project. Mt. Hood National Forest, Oregon.
USDA Forest Service:
1988. Western spruce budworm defoliation. Western spruce budworm control project. Mt. Hood National Forest, Oregon.
USDA Forest Service:
1988. Western spruce budworm defoliation. Western spruce budworm control project. Mt. Hood National Forest, Oregon.
USDA Forest Service:
1988. Bruce Hostetler. Western spruce budworm control project lab. Mt. Hood National Forest, Oregon.
USDA Forest Service:
1989. Western spruce budworm defoliation. Mt. Hood National Forest, Oregon.
USDA Forest Service:
1989. Defoliation caused by western spruce budworm. Mt. Hood National Forest, Oregon.
USDA Forest Service:
1989. Western spruce budworm defoliation. Mt. Hood National Forest, Oregon.
USDA Forest Service:
1989. Western spruce budworm defoliation. Mt. Hood National Forest, Oregon.
USDA Forest Service:
c.1989. Bruce Hostetler with beating cloth.
USDA Forest Service:
1989. Bruce Hostetler examining trees for western spruce budworm. Halfway Pilot Test Project. Halfway, Oregon.
USDA Forest Service:
1989. Region 6 Forest Pest Management Staff.
USDA Forest Service:
c.1991. USFS aerial observer Keith Sprengel with USFS Beechcraft Baron.
USDA Forest Service:
1992. Western spruce budworm defoliation. Trillium Lake. Mt. Hood National Forest, Oregon.
USDA Forest Service:
1992. Entomologists (L-R) Beth Willhite, Tommy Gregg, and Bruce Hostetler collect Douglas-fir tussock moth defoliation data. Pine Ranger District, Wallowa-Whitman National Forest.
USDA Forest Service:
1993. Forest entomologist Beth Willhite. Plot work and a pulaski.
USDA Forest Service:
c.1993. Keith Sprengel working on aerial survey maps in the Regional Office map room. Portland, Oregon.
USDA Forest Service:
c.1994. Beth Willhite with root wad.
USDA Forest Service:
1996. Diane Hildebrand. USFS pathologist. 50 Years of Aerial Survey celebration. World Trade Center. Portland, Oregon.
USDA Forest Service:
1996. USFS pathologist Jerry Beatty. 50 Years of Aerial Survey celebration. World Trade Center. Portland, Oregon.
USDA Forest Service:
1996. USFS aerial observer and master of ceremonies: Keith Sprengel. 50 Years of Aerial Survey celebration. World Trade Center. Portland, Oregon.
USDA Forest Service:
1996. USFS entomologists Bruce Hostetler (left), Roger Sandquist (center) and Andy Eglitis at the 50 Years of Aerial Survey celebration. World Trade Center. Portland, Oregon.
USDA Forest Service:
1998. Diane Hildebrand. Forest pathologist. Regional Office, Portland, Oregon.
USDA Forest Service:
1998. FHP Natural Resources Institute Forest Insect and Disase teaching cadre. L-R back: Paul Flanagan, Dave Bridgwater, Ken Denton, Beth Willhite, Dave Schultz, Diane Hildebrand Front: Ellen Goheen, Susan Frankel, Don Goheen, Katy Marshall, Andy Eglitis.
USDA Forest Service:
2000. C&C. Back l-r: Jeff Moore, Jeff Jenkins, Rayburn Mitchell, Mike McWilliams, Keith. Sprengel, Dave Overhulser. Middle l-r: Ellen Goheen, Yolanda Barnett, and Beth Willhite. Front: Carrie Burns and Roy Magelssen.
USDA Forest Service:
2000. Mt. Hood National Forest headquarters employee parking lot. 16400 Champion Way, Sandy, Oregon.
USDA Forest Service:
2000. Mt. Hood National Forest headquarters employee parking lot. 16400 Champion Way, Sandy, Oregon.
USDA Forest Service:
2000. Mt. Hood National Forest headquarters employee parking lot. 16400 Champion Way, Sandy, Oregon.
USDA Forest Service:
2000. Mt. Hood National Forest headquarters employee parking lot. 16400 Champion Way, Sandy, Oregon.
