Roy Magelssen setting up a Douglas-fir beetle monitoring trap at Gold Creek on the Methow Valley Ranger District. Okanogan-Wenatchee National Forest, Washington.

Photo by: Connie Mehmel Date: April 21, 2015

Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Wenatchee Service Center. Source: Connie Mehmel collection. Wenatchee, Washington.

More about this work from Connie Mehmel: "This was part of a three-year post-fire insect response study following the 2014 Carlton Complex Fire. The traps are baited with a pheromone lure. Beetles fly in, hit the funnels and fall down into the white plastic cup, which is half filled with antifreeze. The catch is collected once a week. (The antifreeze is poured through a paper filter, which catches the dead beetles. The antifreeze is then poured back into the trap.) " See also: <a href="https://www.flickr.com/photos/151887236@N05/38202745424/in/dateposted-public/">www.flickr.com/photos/151887236@N05/38202745424/in/datepo...</a>

Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: <a href="https://www.fs.usda.gov/main/r6/forest-grasslandhealth" rel="nofollow">www.fs.usda.gov/main/r6/forest-grasslandhealth</a>

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