Mortality factors associated with laboratory reared Douglas-fir tussock moth larvae : a case study

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Citeable URL: https://ir.library.oregonstate.edu/concern/defaults/p2676w811

Descriptions

Attribute Name	Values
Creator	Gast, Sandy Gibson, Kenneth E. United States. Forest Service. Northern Region
Abstract	In conjunction with a proposed suppression project against the Douglas-fir tussock moth in northern Idaho, more than 1,000 larvae were collected from sample plots throughout the 32,000-acre treatment area. We had hoped to determine naturally occurring mortality factors which may have contributed to lower than anticipated population levels. Reared on artificial media, 71.5 percent of the larvae completed their development to the adult stage. Parasites accounted for 10.6 percent of the pre-adult mortality, native NPV only 3.1 percent; 12.9 percent died of other diseases or unknown causes. No single factor was identified as having resulted in unexpectedly low tussock moth populations in 1986.
Resource Type	Technical Report
Date Available	2006-12-07T17:19:22+00:00
Date Issued	1987
Series	Forest pest management
Subject	Report (United States. Forest Service. Northern Region. Forest Pest Management) Douglas fir tussock moth -- Larvae -- Mortality
Rights Statement	Copyright Not Evaluated
Publisher	Missoula, Mont. : USDA Forest Service, Northern Region
Language	English [eng]
File Format	application/pdf
File Extent	3193065 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/1957/3657

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