James, Robert L, United States. Forest Health Protection, and United States. Forest Service. Northern Region. Effects of Preplant Soil Treatments On Fusarium and Trichoderma Populations and Fungal Root Colonization of 2-0 Nondiseased Western White Pine Seedlings - Usda Forest Service Nursery, Coeur D'alene, Idaho. : Missoula, MT : U.S. Dept. of Agriculture, Forest Service, Northern Region, 2002.