| dc.date |
2006-10-26T14:34:37Z |
|
| dc.date |
2006-10-26T14:34:37Z |
|
| dc.date |
1972 |
|
| dc.date.accessioned |
2013-10-16T07:41:09Z |
|
| dc.date.available |
2013-10-16T07:41:09Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/3234 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/3234 |
|
| dc.description |
Numerous stands of western larch, Larix occidentalis, on the St. Joe, Coeur d'Alene, and Kaniksu National Forests, Idaho, show signs of
gradual deterioration following repeated defoliation by larch casebearer,
Coleophora Zaricella Hbn. (Tunnock et al. 1969). Stand deterioration
can occur after 4 years of continued heavy defoliation. The main symptom
is epicormic branching. Upon examination, many of these dead and dying
larch have been infested by the western larch borer, Tetropium veZutinum LeConte, or infected by root rotting fungi.
The objective of this study was to determine if larch severely weakened
by larch casebearer feeding would die if they were not attacked by
borers or root rots. |
|
| dc.language |
en_US |
|
| dc.publisher |
Missoula, Mont. : USDA Forest Service, Northern Region, Division of State and Private Forestry |
|
| dc.relation |
Report (United States. Forest Service. Northern Region) |
|
| dc.relation |
no. I-72-7 |
|
| dc.relation |
Insect disease report |
|
| dc.title |
Observations on the decline of western larch defoliated by larch casebearer in the northern region |
|
| dc.type |
Technical Report |
|