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Parasite complex of the larch casebearer in Idaho and Montana progress report

Creator:: Niwa, Christine Gail, Hard, John S., and United States. Forest Service. Northern Region. State & Private Forestry
Resource Type:: Technical Report
Full Text:: No. • • • 9 3 PARASITE COMPLEX OF THE LARCH CASEBEARER IN IDAHO AND MONTANA Y1 0. Si- /5

Fungicide tests to control Botrytis blight of containerized western larch at the Champion Timberlands Nursery, Plains, Montana

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:: plants, and limiting irrigation are usually necessary to control this disease (Cooley 1981). However

Evaluation of fungicides to control Botrytis blight in western larch seedbeds at the Coeur d'Alene Nursery, Idaho

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:: commonly used in greenhouses to control the disease in a seedbed environment. MATERIALS AND METHODS

Observations on the decline of western larch defoliated by larch casebearer in the northern region

Creator:: Tunnock, Scott and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: Numerous stands of western larch, Larix occidentalis, on the St. Joe, Coeur d'Alene, and Kaniksu National Forests, Idaho, show signs of gradual deterioration following repeated defoliation by larch casebearer, Coleophora Zaricella Hbn. (Tunnock et al. 1969). Stand deterioration can occur after 4 years of continued heavy defoliation. The main symptom...
Resource Type:: Technical Report
Full Text:: CASEBEARER IN THE NORTHERN REGION by Scott Tunnock, Entomologist • Forest Insect and Disease Branch

Evaluation of larch casebearer parasites on the Flathead National Forest, Montana, 1985

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:: control on the larch casebearer on the Flathead NF. Parasitism ranged fran 4 to 60 percent and averaged

Reevaluation of larch casebearer parasites in casebearer-infested stands of Region I

Creator:: Flavell, Thomas H. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: The larch casebearer, Coleophora laricella (Hubner) was first reported attacking western larch, Larix occidentalis, in Idaho in 1957 (Denton, 1958), 71 years after its introduction into Massachusetts from Europe. The apparent successful regulation of this insect in the eastern U.S. by introduced parasites prompted biological control attempts in the West....
Resource Type:: Technical Report
Full Text:: and 1969, Forest Insect & Disease Management released A. pumila at 378 locations in Washington, Idaho

An evaluation of the effectiveness of dwarf mistletoe suppression in unevenaged stand on the Flathead Indian Reservation

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

Western larch seed-contaminating fungi and treatments to reduce infection and improve germination

Creator:: James, Robert L., Dumroese, R. Kasten, Wenny, David Lee, and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: . Western larch: pest-tolerant conifer of the Northern Rocky Mountains. In: Schmidt, • W. C. and K. J

Permanent plots for studying the spread and intensification of larch dwarf mistletoe and the effects of the parasite on growth of infected western larch on the Flathead Indian Reservation, Montana : results from the 5-year re-measurement

Creator:: Taylor, Jane, 1962-, Marsden, Michael A., and United States. Forest Service. Northern Region
Resource Type:: Technical Report
Full Text:: INTENSIFICATION OF LARCH DWARF MISTLETOE AND THE EFFECTS OF THE PARASITE ON GROWTH OF INFECTED WESTERN LARCH ON

Potential for larch casebearer defoliation in the Northern Region, 1972

Creator:: Bousfield, Wayne E. and United States. Forest Service. Northern Region. State & Private Forestry
Abstract:: The larch casebearer Coleophora laricella (Hbn.) is now established throughout all western larch stands in Region 1. Population levels have begun to fluctuate in some of the older infested stands; however, it is still on the increase in more recently invaded territory. During the past 2 years work was begun...
Resource Type:: Technical Report
Full Text:: . Bousfield, Entomologist Forest Insect and Disease Branch • The larch casebearer Coleophora laricella (Hbn

ScholarsArchive@OSU

Parasite complex of the larch casebearer in Idaho and Montana progress report

Fungicide tests to control Botrytis blight of containerized western larch at the Champion Timberlands Nursery, Plains, Montana

Evaluation of fungicides to control Botrytis blight in western larch seedbeds at the Coeur d'Alene Nursery, Idaho

Observations on the decline of western larch defoliated by larch casebearer in the northern region

Evaluation of larch casebearer parasites on the Flathead National Forest, Montana, 1985

Reevaluation of larch casebearer parasites in casebearer-infested stands of Region I

An evaluation of the effectiveness of dwarf mistletoe suppression in unevenaged stand on the Flathead Indian Reservation

Western larch seed-contaminating fungi and treatments to reduce infection and improve germination

Permanent plots for studying the spread and intensification of larch dwarf mistletoe and the effects of the parasite on growth of infected western larch on the Flathead Indian Reservation, Montana : results from the 5-year re-measurement

Potential for larch casebearer defoliation in the Northern Region, 1972

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