| dc.date |
2006-10-30T19:04:18Z |
|
| dc.date |
2006-10-30T19:04:18Z |
|
| dc.date |
1972 |
|
| dc.date.accessioned |
2013-10-16T07:41:13Z |
|
| dc.date.available |
2013-10-16T07:41:13Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/3257 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/3257 |
|
| dc.description |
The pine butterfly, Neophasia menapia (Felder and Felder), infestation
on the Nezperce National Forest was aerially surveyed in mid-August 1972.
A followup ground evaluation was made in September. Results of the survey
show the infestation has increased substantially in intensity and size.
The infestation was first reported in 1971 when 4,200 acres of aerially
visible defoliation were detected along the south-facing slopes of the
Salmon River breaks east of Riggins, Idaho. Approximately 22,000 acres
of defoliation were mapped during the 1972 aerial survey. In addition to
the infested areas east of Riggins, defoliation exists as far north as
Slate Creek and also on the "island" to the south (Fig. 1).
Defoliation intensities range from just detectable to complete removal of
the foliage. Most of the trees still have their 1972 needles. |
|
| 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-72-11 |
|
| dc.relation |
Insect disease report |
|
| dc.title |
Evaluation of the pine butterfly infestation on the Nezperce National Forest, 1972 |
|
| dc.type |
Technical Report |
|