| dc.date |
2006-11-20T22:57:24Z |
|
| dc.date |
2006-11-20T22:57:24Z |
|
| dc.date |
1976 |
|
| dc.date.accessioned |
2013-10-16T07:42:00Z |
|
| dc.date.available |
2013-10-16T07:42:00Z |
|
| dc.date.issued |
2013-10-16 |
|
| dc.identifier |
http://hdl.handle.net/1957/3450 |
|
| dc.identifier.uri |
http://koha.mediu.edu.my:8181/xmlui/handle/1957/3450 |
|
| dc.description |
Dipel (R) was applied by helicopter to three blocks of Douglasfir
and Engelmann spruce infested with Choristoneura occidentalis
Free., in southwestern Montana. Dosage was 1 pound (7.2 Bill) in
2 gallons of water/acre (453 g in 7.5 t/0.4 ha). A commercial
surfactant, Bio-film (R) was added at the rate of 16 oz./100 gal.
(453 g/378.5 £) of spray. Rhodamine B extra S dye was added at
the rate of 1.25 g/i. Dipel was applied to mainly third and
fourth instar budworm. Mortality, corrected by covariance
analysis, at 21-day postspray counts indicated an average of
50.4 percent control. Additional mortality further reduced the
population to an estimated 4.4 budworm/100 buds compared to
12 budworm/100 buds in check blocks. Foliage protection was
5.6 percent. Significant parasite population disruptions
occurred following spray application. |
|
| dc.language |
en_US |
|
| dc.publisher |
Missoula, Mt. : Forest Environmental Protection, USDA, Forest Service, Northern Region, State & Private Forestry |
|
| dc.relation |
Report (United States. Forest Service. Northern Region) |
|
| dc.relation |
no. 76-11 |
|
| dc.relation |
Forest environmental protection |
|
| dc.title |
Dipel wettable powder (Bacillus thuringiensis Berliner) as a control agent for western spruce budworm Choristoneura occidentalis Free |
|
| dc.type |
Technical Report |
|