Fir engraver caused damage surrounds one spot of mountain pine beetle in white pine. Seen from Road 115 near Blewett Pass on the Ellensburg side in Washington. Aerial Survey Program's Calibration and Conformity field training.

The active spot is highlighted here: www.flickr.com/photos/151887236@N05/42945663571/in/datepo...

For more about the Region 6 aerial survey program see: www.fs.usda.gov/detail/r6/forest-grasslandhealth/insects-...

Photo by: Justin Hof
Date: June 14, 2018

Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.
Source: Aerial Survey Program collection.

Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth

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