| dc.date |
2006-11-22T17:03:48Z |
|
| dc.date |
2006-11-22T17:03:48Z |
|
| dc.date |
1979 |
|
| dc.date.accessioned |
2013-10-16T07:42:23Z |
|
| dc.date.available |
2013-10-16T07:42:23Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/3503 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/3503 |
|
| dc.description |
Mountain pine beetle populations developed to epidemic level in
1970 on the Hebgen Lake Ranger District. Infested acreage
increased from 78,000 in 1977 to 79,061 in 1978. More than
4 million trees (238 MMBF) were killed in 1978. Cold temperatures
during December 1978 may cause a significant decline in the beetle
population, resulting in a decline in the number of newly attacked
trees in 1979. Potential mortality from the beetle can be reduced
and prevented through an accelerated program of (1) logging
infested trees, and (2) silvicultural treatment of green and
infested stands to reduce the inventory of large diameter highly
preferred trees.
High valued lodgepole pine in recreation and administrative sites
should be sprayed with the preventative chemical, Sevimo1-4, to
protect trees from beetle attack until the epidemic declines. |
|
| dc.language |
en_US |
|
| dc.publisher |
Missoula, MT. : Forest Insect & Disease Management, USDA, Forest Service, Northern Region, State & Private Forestry |
|
| dc.relation |
Report (United States. Forest Service. Northern Region) |
|
| dc.relation |
no. 79-6 |
|
| dc.relation |
Forest insect & disease management |
|
| dc.title |
Evaluation of mountain pine beetle infestation, Hebgen Lake Ranger District, Gallatin National Forest, Montana, 1978 |
|
| dc.type |
Technical Report |
|