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Creator:: James, Robert L., Genz, Daryl, and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Abstract:: Five fungicides were evaluated to control Botrytis blight of containerized western larch seedlings at the Champion Timberlands Nursery, Plains, MT. Fungicides were applied at biweekly intervals before and after seedling inoculation with Botrytis. Vinclozolin (Ornalin®) caused severe phytotoxicity to seedlings, resulting in enhanced mortality and premature needle loss. Captan and...
Resource Type:: Technical Report
Full Text:: TiNGICIDE TESTS TO CONTROL BOTRYTIS BLIGHT OF CONTAINERIZED WESTERN LARCH AT THE CHAMPION TIMBERLANDS

Creator:: Niwa, Christine Gail, Hard, John S., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: laricella (Hubner) was first discovered attacking western larch, Larix occidentalis Nutt. in 1957 near St

Creator:: James, Robert L. and United States. Forest Service. Northern Region
Abstract:: Causes of mortality of containerized western larch seedlings at the Champion Timberlands Nursery, Plains, Montana, were investigated. Seedlings were rated for disease severity based on extent of foliar decline symptoms and fungal isolations made from their roots. Isolations were also made from selected larch seed. Consistent associations between root colonization...
Resource Type:: Technical Report
Full Text:: MORTALITY OF CONTAINERIZED WESTERN LARCH SEEDLINGS AT THE CHAMPION

Creator:: James, Robert L. and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: Report 87-11 October 1987 CONTAINERIZED WESTERN LARCH SEEDLING MORTALITY, USDA FOREST SERVICE NURSERY

Creator:: James, Robert L. and United States. Forest Service. Northern Region
Abstract:: Needlecast caused by Meria laricis caused serious losses of 2-0 bareroot western larch during 1983 at the USDA Forest Service Nursery, Coeur d'Alene, Idaho. Cool, wet weather throughout the spring and summer of 1983 was ideal for disease buildup and spread. Control attempts with fungicides were largely unsuccessful because of...
Resource Type:: Technical Report
Full Text:: -20 MERIA NEEDLECAST OF WESTERN LARCH SEEDLINGS AT THE USDA FOREST SERVICE NURSERY, COEUR D'ALENE

Creator:: James, Robert L., Woo, John You, Malone, P. L., and United States. Forest Service. Northern Region. Cooperative Forestry & Pest Management
Abstract:: Six fungicides were evaluated to control Botrytis blight of western 41 larch in seedbeds at the Coeur d'Alene Nursery. Fungicides were applied at biweekly intervals during the spring of 1982; test seedlings were inoculated with spores of B. cinerea twice during the evaluation period. Seedling mortality and height were recorded...
Resource Type:: Technical Report
Full Text:: a 51)1144 M9 A3 EVALUATION OF FUNGICIDES TO CONTROL BOTRYTIS BLIGHT IN WESTERN LARCH SEEDBEDS AT

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:: . Rept. 74-3, 40 p., illus. Denton, R. F. 1979. Larch casebearer in western larch forests. USDA Forest

Creator:: Merrill, L. M. and United States. Forest Service. Northern Region
Abstract:: Dwarf mistletoe is a serious problem on the Flathead Indian Reservation. Since the early 197o's, a procedure called thinning-sanitation has been applied to lightly infested stands. Evaluation of this procedure indicated that average dwarf mistletoe infection levels now range from 7 to 50 percent in larch and Douglas-fir treated 10...
Resource Type:: Technical Report
Full Text:: , western larch, and/or lodgepole pine host trees is infected with dwarf mistletoe (Arceuthobium spp

Creator:: Dooling, Oscar J., Eder, Robert G., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: for dwarf mistletoe In Douglas-fir (DF), western larch (WL), and lodgepole pine (LP) on the Flathead

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