| dc.date |
2006-11-21T18:46:47Z |
|
| dc.date |
2006-11-21T18:46:47Z |
|
| dc.date |
1977 |
|
| dc.date.accessioned |
2013-10-16T07:42:04Z |
|
| dc.date.available |
2013-10-16T07:42:04Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/3477 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/3477 |
|
| dc.description |
Mountain pine beetle infestations in second-growth ponderosa pine
developed in 1973 in the Little Rocky Mountains. In 1976, increasing
numbers of attacked trees were observed. Current infestation intensity
averages 7.1 trees per acre. Losses are expected to continue
as long as stands remain overstocked and stagnated. Reduction of
basal area by commercial sales and/or thinning is recommended. Precautions
are given to prevent population buildup of secondary bark
beetles. |
|
| 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. 77-18 |
|
| dc.relation |
Forest insect & disease management |
|
| dc.title |
Status of mountain pine beetle infestations in second-growth ponderosa pine stands, Little Rocky Mountains, Fort Belknap Reservation, Montana, 1977 |
|
| dc.type |
Technical Report |
|