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Filtering by: Subject Aphids--Biological control Creator Bousfield, Wayne E. Resource Type Technical Report

Establishment and distribution of the larch casebearer parasite, Agathis pumila in Idaho, Montana, Washington, Oregon and British Columbia

Creator:

Bousfield, Wayne E.

Resource Type:

Technical Report

Full Text:

1969). Biological control efforts were started in 1960 when Agathis pumila (Ratz.) was introduced in
Evaluation of larch casebearer parasites on the Flathead National Forest, Montana, 1985

Creator:

Tunnock, Scott, Bousfield, Wayne E., and United States. Forest Service. Northern Region

Abstract:

An evaluation during the summer of 1985 showed that parasites were still exerting control on the larch casebearer on the Flathead NF. Parasitism ranged from 4 to 60 percent and averaged 25.2 percent in the 12 areas surveyed. Four species of parasites were involved. The most abundant was Agathis pumila...

Resource Type:

Technical Report

Full Text:

control on the larch casebearer on the Flathead NF. Parasitism ranged fran 4 to 60 percent and averaged
Western spruce budworm 1/ control project on the Big Timber Ranger District, Gallatin National Forest, Montana

Creator:

Bousfield, Wayne E., Cifala, Frank, Kracht, Richard, and United States. Forest Service. Northern Region

Abstract:

The microbial insecticide, Bacillus thuringensis (Bt), was applied from fixed-wing aircraft to approximately 700 acres of western spruce budworm host type at the rate of 12 billion international units (BIU's) per gallon of water per acre. The objective of this control project was foliage protection to insure future cone production...

Resource Type:

Technical Report

Full Text:

-8 3450 March 1987 WESTERN SPRUCE BUDWORM 1/ CONTROL PROJECT ON THE BIG TIMBER RANGER DISTRICT

ScholarsArchive@OSU

Establishment and distribution of the larch casebearer parasite, Agathis pumila in Idaho, Montana, Washington, Oregon and British Columbia

Evaluation of larch casebearer parasites on the Flathead National Forest, Montana, 1985

Western spruce budworm 1/ control project on the Big Timber Ranger District, Gallatin National Forest, Montana

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