| dc.date |
2006-11-09T23:03:39Z |
|
| dc.date |
2006-11-09T23:03:39Z |
|
| dc.date |
1974 |
|
| dc.date.accessioned |
2013-10-16T07:41:25Z |
|
| dc.date.available |
2013-10-16T07:41:25Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/3353 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/3353 |
|
| dc.description |
Mountain pine beetle reached epidemic levels in second-growth ponderosa
pine stands on Bureau of Indian Affairs and private lands on the Crow
Indian Reservation. Approximately 9,106 trees containing 420,266 merchantable
board feet were killed from 1971 to 1973. This is about 24 percent of the merchantable ponderosa pine in stands surveyed. Stands
are stagnated, and trees appear stressed which is probably predisposing
them to beetle attack.
An increase in size of area infested and number of trees killed is
expected in 1974. Commercial thinning to remove infested trees and reduce basal area is recommended to alleviate the problem. Slash
disposal is highly recommended during logging to prevent buildup of
pine engraver beetle populations. |
|
| dc.language |
en_US |
|
| dc.publisher |
Missoula, MT. : USDA Forest Service, Northern Region, Division of State & Private Forestry |
|
| dc.relation |
Report (United States. Forest Service. Northern Region) |
|
| dc.relation |
no. 74-6 |
|
| dc.relation |
Insect and disease report |
|
| dc.title |
Evaluation of mountain pine beetle infestations, Wolf Mountains, Crow Indian Reservation, Montana, 1973 |
|
| dc.type |
Technical Report |
|