Seeley Swan Pathfinder -

Rocky Mountain Adventure Gear - For all Your Motorized and Non-Motorized Adventures!

By John Ingebretson
Forester, Swan Valley Connections 

Why are My Douglas-fir Trees Dying?

 

Lindsey Seastone Museum Collections Coleoptera

Douglas-fir bark beetle.

The Douglas-fir bark beetle is the most destructive beetle attacking Douglas-fir trees in the Seeley/Swan Valley. The potential loss of trees can be considerable and can affect both residential homeowners as well as commercial interests. Outbreaks develop in host trees following stand disturbances such as windthrow, drought, severe defoliation or wildfire, such as the Condon Mountain Fire in 2012. During outbreaks, groups of dead trees may total 100 or more. Yearly mortality in the northern region, which includes Montana, may extend into the millions of board feet.

Are...



For access to this article please sign in or subscribe.



 

Reader Comments
(0)

 
 

Powered by ROAR Online Publication Software from Lions Light Corporation
© Copyright 2018