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| DC Field | Value | Language |
|---|---|---|
| dc.date | 2006-12-05T18:51:39Z | - |
| dc.date | 2006-12-05T18:51:39Z | - |
| dc.date | 1985 | - |
| dc.date.accessioned | 2013-10-16T07:42:47Z | - |
| dc.date.available | 2013-10-16T07:42:47Z | - |
| dc.date.issued | 2013-10-16 | - |
| dc.identifier | http://hdl.handle.net/1957/3613 | - |
| dc.identifier.uri | http://koha.mediu.edu.my:8181/xmlui/handle/1957/3613 | - |
| dc.description | The cranberry girdler, Chrysoteuchia toparia Zeller, has caused increasing damage to tree seedlings in the Coeur d'Alene Nursery since 1980. Heaviest feeding has occurred on the tap roots of 2+0 Douglas-fir stock. By 1983, 8.2 percent of the seedlings examined in seedbeds were injured by this moth. A spray program was adopted in 1984 to reduce the amount of damage. Three applications of Diazinon at 1 lb. active ingredient per acre were used to kill adult moths, and three applications of Dursban at the same rate were used to reduce larval populations in the soil of Douglas-fir beds. Results of the insecticidal treatments were determined in November 1984 during lifting operations. In sprayed beds, only 0.01 percent of the 2+0 Douglas-fir seedlings examined were injured, and 0.9 percent of the 3+0 Douglas-firs examined were injured. There were no beds of unsprayed Douglas-fir seedlings to use as a check. Because damage was 8.2 percent in beds during 1983, and moth populations were high in 1984, damage in unsprayed beds could have been 8 percent or greater in 1984. Nurseries consider damage tolerable when it is below 1.0 percent. | - |
| dc.language | en_US | - |
| dc.publisher | Missoula, Mont. : USDA Forest Service, Northern Region | - |
| dc.relation | Report (United States. Forest Service. Northern Region) | - |
| dc.relation | no. 85-4 | - |
| dc.relation | Forest pest management | - |
| dc.title | Suppression of cranberry girdler damage in beds of Douglas-fir seedlings, Coeur d'Alene Nursery, Idaho Panhandle National Forest, 1984 | - |
| dc.type | Technical Report | - |
| Appears in Collections: | ScholarsArchive@OSU | |
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