Citeable URL: http://ir.library.oregonstate.edu/concern/defaults/7p88ch910

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 for this timber sale area. Evaluations, 20 days after spray application, showed the adjusted defoliation was 38.2 percent in the sprayed areas and 66.4 percent in the unsprayed areas at the termination of the budworm feeding period. Population reduction, corrected for natural mortality at 20 days, was 68 and 81 percent at the time of moth emergence.

Descriptions

Attribute Name	Values
Creator	Kracht, Richard Bousfield, Wayne E. Cifala, Frank United States. Forest Service. Northern Region
Resource Type	Technical Report
Date Available	2006-12-07T17:36:33+00:00
Date Issued	1987
Series	no. 87-8 Forest pest management Report (United States. Forest Service. Northern Region)
Subject	Bacillus thuringiensis -- Montana -- Gallatin National Forest Western spruce budworm -- Biological control -- Montana -- Gallatin National Forest
Rights Statement	Copyright Not Evaluated
Publisher	Missoula, Mont. : USDA Forest Service, Northern Region
Language	English [eng]
File Format	application/pdf
File Extent	2469438 bytes
Digitization Specifications	Scanned at 600 DPI using a Cannon DR-9080C in TIF format. PDF generated through Capture Perfect using OmniPage Professional 15 for textual OCR.
Replaces	http://hdl.handle.net/1957/3661
Additional Information	description.provenance : Approved for entry into archive by Linda Kathman(linda.kathman@oregonstate.edu) on 2006-12-07T17:36:31Z (GMT) No. of bitstreams: 1 no. 87-8_ocr.pdf: 2469438 bytes, checksum: 12a7b4806d3690f738825977a5a9b533 (MD5) description.provenance : Approved for entry into archive by Patricia Black(patricia.black@oregonstate.edu) on 2006-12-05T16:45:52Z (GMT) No. of bitstreams: 1 no. 87-8_ocr.pdf: 2469438 bytes, checksum: 12a7b4806d3690f738825977a5a9b533 (MD5) description.provenance : Made available in DSpace on 2006-12-07T17:36:33Z (GMT). No. of bitstreams: 1 no. 87-8_ocr.pdf: 2469438 bytes, checksum: 12a7b4806d3690f738825977a5a9b533 (MD5) Previous issue date: 1987 description.provenance : Submitted by Adam Powell (powella@onid.orst.edu) on 2006-12-04T18:09:24Z No. of bitstreams: 1 no. 87-8_ocr.pdf: 2469438 bytes, checksum: 12a7b4806d3690f738825977a5a9b533 (MD5)

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