Retail $10 - $15 each. 2 - 3 per tree.
http://www.fs.fed.us/r1/helena/news/news_releases_08/04_22_08.pdf
"...beetle block verbenone and MCH capsules for the prevention of mountain pine and Douglas Fir beetles..."
Pheromone packets, Beetle Block, are a recently approved eco-friendly alternative. They need to be placed on trees before the beetles fly. Both AgBio (303-469-9221) and Pherotech International (1-800-665-0076) sell them.
http://www.rockymountainnews.com/news/2008/jul/06/speakout-synthetic-pheromone-packets-a-safer-way/
"Though relatively less successful than carbaryl, Beetle Block is not toxic."
Verbenone Pouch info from manufacturer.
US Forest Service site
Boulder County site
Front Range Mountain Pine Beetle Information site
Wednesday, December 03, 2008
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