Southern Arizona forest plans to ward off tree-killing pests

Posted: Updated:
(Source: Tucson News Now) (Source: Tucson News Now)

Forest officials in southern Arizona are trying to keep bark beetles from destroying endangered squirrel habitat.

The Coronado National Forest says it plans to treat 300 acres of Douglas fir trees with a product that repels bark beetles.

The treatment involves placing capsules containing anti-aggression pheromones among the trees. Officials say the capsules send a signal that ward off male beetles looking to reproduce.

[READ MORE: Coronado National Forest to seed wildfire-scarred land]

The treatment is scheduled for early spring. Forest officials say they should be able to tell if it worked by late summer 2018.

They say they saw success with the treatment after a wildfire in 2011.

Officials say wildfires in 2004 and earlier this year charred much of the critical habitat for the endangered Mount Graham red squirrel. About 600 acres remain.

Click/tap here to download the free azfamily mobile app.

© 2017 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.