أعرض تسجيلة المادة بشكل مبسط
| dc.date |
2006-10-18T17:59:36Z |
|
| dc.date |
2006-10-18T17:59:36Z |
|
| dc.date |
1972 |
|
| dc.date.accessioned |
2013-10-16T07:41:04Z |
|
| dc.date.available |
2013-10-16T07:41:04Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/3172 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/3172 |
|
| dc.description |
A 3-year evaluation of Douglas-fir cones in Montana and Yellowstone National Park, Wyoming, showed the western spruce budworm, Choristoneura occidentalis Freeman, and midges were the most common and injurious insects found each year. Injury was so severe at some plots that no 41 sound seeds could be found. |
|
| dc.language |
en_US |
|
| dc.publisher |
Missoula, Mont. : U.S. Dept. of Agriculture, Forest Service, Division of State and Private Forestry, Northern Region |
|
| dc.relation |
Report (United States. Forest Service. Northern Region) |
|
| dc.relation |
no. 72-1 |
|
| dc.title |
A three year evaluation of Douglas-fir cone and seed insects in Montana and Yellowstone National Park |
|
| dc.type |
Technical Report |
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الملفات في هذه المادة
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لا توجد أي ملفات مرتبطة بهذه المادة.
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هذه المادة تبدو في المجموعات التالية:
أعرض تسجيلة المادة بشكل مبسط