BLACK HILLS FORESTERS COMBAT
MOUNTAIN PINE BEETLES
CUSTER, SD: AUGUST 21, 2008
The mountain pine beetle epidemic is spreading in the Black Hills,
even as foresters work to stop the problem.
The first major outbreak occurred in 1997 in the Northern Hills
by Sturgis, but the pine beetles did not stop there. They moved
to the central hills and consumed a large portion in the Black Elk
Wilderness, Harney Peak, and surrounding areas. As of 2006 about
30% of this area was affected. Forest Service scientists estimate
that 50% of the wilderness area is infected. Kurt Allen, a Forest
Service entomologist at Rapid City, said if this outbreak continues
there is a chance of 100% mortality rate around Harney Peak.
“The biggest defense for saving trees is thinning out stands
by logging, fuel reduction, or just thinning the trees,” Allen
said. The beetles tend to go after denser stands. Fewer trees in
an area will make it less likely to have big beetle outbreaks, he
said.
The Forest Service has already conducted a number of large projects
to try and combat the beetle by thinning and harvesting. But there
is a challenge in the Black Elk Wilderness. The use of power tools
such as chain saws is not allowed in this area. Since it is a wilderness
area there will be no human intervention and nature will take its
course. Allen said in time bug kill areas will grow and change the
look of the area, there will be fewer mature trees and more open
areas under the trees.
Allen said the beetles do play a positive role. Woodpeckers and
other wildlife feed off of the insects in the dying and dead trees.
The dead trees also help in the recycling of the forest. "We
are at the point in the Black Hills where whole hillsides are dying
and that is not the effect we want. The scale of dead stands has
grown to be too big,” he said.
Allen said that the pine beetle epidemic is going to be an ongoing
problem and there is no fast solution. “The beetles keep us
from meeting management objectives of the forest because things
are dying too fast,” said Allen. He said the Forest Service
will continue thinning and harvesting to control the insect populations.
For more information visit the U.S. Forest Service website at www.fs.fed.us/r2/blackhills
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