Mountain pine beetle emergence from lodgepole pine at different elevations near Fraser, CO
Mountain pine beetle emergence was studied at 8760 ft, 9200 ft, and 9900 ft near Fraser, CO. Beetles began emerging at 8760 ft between July 9 and July 14 while no beetles emerged at 9200 ft and only one beetle emerged at 9900 ft during the same period. Beetle emergence continued at relatively low bu...
| Main Author: | Tishmack, J. |
|---|---|
| Other Authors: | Mata, S. A., Schmid, J. M., Rocky Mountain Research Station (Fort Collins, Colo.) |
| Format: | eBook |
| Language: | English |
| Published: |
Fort Collins, CO :
United States Department of Agriculture, Forest Service, Rocky Mountain Research Station,
[2005]
|
| Physical Description: |
5 pages : illustrations ; 28 cm. Also available in electronic format on the Internet. |
| Series: |
Research note RMRS ;
RN-27. |
| Subjects: | |
| Online Access: |
PURL http://www.fs.fed.us/rm/pubs/rmrs%5Frn027.pdf |
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| 100 | 1 | |a Tishmack, J. | |
| 245 | 1 | 0 | |a Mountain pine beetle emergence from lodgepole pine at different elevations near Fraser, CO / |c J. Tishmack, S.A. Mata, and J.M. Schmid. |
| 264 | 1 | |a Fort Collins, CO : |b United States Department of Agriculture, Forest Service, Rocky Mountain Research Station, |c [2005] | |
| 300 | |a 5 pages : |b illustrations ; |c 28 cm. | ||
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| 490 | 1 | |a Research note RMRS ; |v RN-27. | |
| 500 | |a Title from caption. | ||
| 500 | |a "August 2005." | ||
| 530 | |a Also available in electronic format on the Internet. | ||
| 520 | 3 | |a Mountain pine beetle emergence was studied at 8760 ft, 9200 ft, and 9900 ft near Fraser, CO. Beetles began emerging at 8760 ft between July 9 and July 14 while no beetles emerged at 9200 ft and only one beetle emerged at 9900 ft during the same period. Beetle emergence continued at relatively low but fluctuating rates for the next two to three weeks. Peak emergence occurred about August 5 at 8760 ft, about August 12 at 9200 ft, and from August 12 to 19 at 9900 ft. Beetle emergence was complete by September 3. Average numbers of beetles emerging ranged from 5 to 256/ft² of bark per tree with the means for each elevation not significantly different. Attack densities averaged between 6 and 9/ft² of bark for the three elevations. Population trend ratios were computed for each tree and ranged from 0.4 to 32.0. Trend ratios varied substantially among trees but were not significantly different among elevations due to the significant variation among trees. The emergence period and population trend ratios are discussed in relation to suppression/survey projects and a stand susceptibility system. | |
| 504 | |a Includes bibliographical references (page 5). | ||
| 650 | 0 | |a Mountain pine beetle |z Colorado |z Fraser River Valley. | |
| 650 | 0 | |a Lodgepole pine |x Diseases and pests |z Colorado |z Fraser River Valley. | |
| 700 | 1 | |a Mata, S. A. | |
| 700 | 1 | |a Schmid, J. M. | |
| 710 | 2 | |a Rocky Mountain Research Station (Fort Collins, Colo.) | |
| 830 | 0 | |a Research note RMRS ; |v RN-27. | |
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