Re: Bark beetle threat looms in the Sierra

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eeek

Bark beetle threat looms in the Sierra
July 28, 2009 05:50PM

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Registered: 15 years ago
Posts: 17,051

Pockets of pines in the Mount Rose area and other stretches of the Carson Range are turning brown -- a disturbing sign that an insect assault that has decimated millions of acres of forests to the east could be headed for the Sierra.

http://www.cabnr.unr.edu/BCNR/News_Full_Story.aspx?StoryID=672

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bill-e-g

Re: Bark beetle threat looms in the Sierra
July 28, 2009 06:16PM

Registered: 15 years ago
Posts: 1,918

Threat!?!? WTF!

This is what it has to be. It's friggin alarming!

http://yosemitenews.info/forum/read.php?1,14823

I'll post of picture of Virginia Canyon. I guess nature will work itself out... but it aint pretty.

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eeek

Western Pine Beetle
July 28, 2009 06:16PM

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Registered: 15 years ago
Posts: 17,051

The western pine beetle, Dendroctonus brevicomis LeConte, can aggressively attack and kill ponderosa and Coulter pine trees of all ages and vigor classes that are 6 inches (15 cm) or larger in diameter, including apparently healthy trees. Group killing of trees is common in dense, overstocked stands of pure, even-aged, young sawtimber, but also occurs among dense clumps of pine in stagnating mixed-conifer stands. One million or more trees containing more than 1 billion board feet of timber may be killed each year during an outbreak. Such extensive tree killing may deplete timber supplies, adversely affect levels and distributions of stocking, disrupt management planning and operations, and increase forest fire danger by adding to available fuels.

http://www.na.fs.fed.us/spfo/pubs/fidls/we_pine_beetle/wpb.htm