Index Catalog // ScholarsArchive@OSU

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

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

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