It's a race against time for spraying against the Mountain Pine bark beetle this month.

The Beaverhead-Deer Lodge National Forest is conducting a comprehensive spraying campaign to try to limit the damage before the insect begins it mid-summer flights and egg-laying in new trees.

There are two methods of prevention. One is a general spraying of an area with Carbaryl. The other involves little packets of Verbenone and/or MCH that are stapled to trees and emit a chemical that wards off flying beetles. Some sites will be closed for a few days during the spraying and others will be not be closed, but will have the Verbenone packets distributed on the trees.

In a news release from Public Affairs Officer Leona Rodreick, Beaverhead-Deerlodge Reforestation Forester Bruce Schuelke said, "We'll begin in June with individual tree treatments in those places we know a large majority of forest visitors and users will be this summer - campgrounds, day-use areas and trailheads."

Spraying will not be done on windy days, picnic tables, fire pits and restroom doors will be cover and spraying will not be done within 75 feet of water.

The treatments will be in the Dillon, Butte/Jefferson, Wisdom-Wise River, Madison and Pintlar Ranger Districts.

More information is available at the Beaverhead-Deerlodge National Forest website.