USDA Forest Service, Pacific Northwest Region, 333 SW First Avenue, PO Box 3623, Portland, OR 97208-3623

B -- BLACKSTAIN ROOT DISEASE STUDY SOL SOL R6-96-800 DUE 052496 POC Contact, Procurement and Property Management, 503/326-3581 The USDA Forest Service, Pacific Northwest Region, intends to award a sole source contract to Oregon State University, Dr. Everett Hansen, for the purpose of continued development of a risk-rating system and thinning guidelines to reduce the impact of blackstain root disease (BSRD) to Douglas-fir on long-term productivity of Pacific Northwest Forests. This includes developing a system for identifying sites at risk for root disease development, determining if precommercial thinning increases the incidence and severity of BSRD, and determining if precommercial thinning in 25-35 year old Douglas-fir increases the risk of BSRD introduction onto a site. See Note 22. (0123)

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