Aerial survey shows beetle infestation spreading

Published on NewsOK Modified: February 6, 2013 at 6:04 pm •  Published: February 6, 2013
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DENVER (AP) — An annual aerial survey of forest health in Colorado shows the mountain pine beetle epidemic is slowing dramatically, but the spruce beetle outbreak is expanding, forest officials said Wednesday.

The mountain pine beetle epidemic has spread by 31,000 acres, down from an increase of 140,000 acres reported last year, the U.S. Forest Service and Colorado State Forest Service said. Since the first signs of the outbreak in 1996, the infestation has grown to nearly 3.4 million acres, or roughly 5,300 square miles. The infestation remains active from Estes Park to Leadville.

Meanwhile, the spruce beetle outbreak spread to 183,000 new acres in 2012, bringing the total infestation since 1996 to about 924,000 acres.

The most significant spruce beetle activity has been in southern Colorado in the San Juan and Rio Grande national forests, forest officials said. Spruce beetles typically attack spruce trees downed by high winds, then move into the surrounding trees as the insects' numbers grow.

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