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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:: February 1972 POTENTIAL FOR LARCH CASEBEARER DEFOLIATION IN THE NORTHERN REGION -- 1972 by Wayne E

Creator:: Bousfield, Wayne E.
Resource Type:: Technical Report
Full Text:: , Tom T., 1966. Distributing parasites of the larch casebearer. USDA, Forest Serv., Div. State and Priv

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:: larch casebearer, Coleophora Zaricella Hbn. (Tunnock et al. 1969). Stand deterioration can occur after 4

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:: * • • • • • • • -2- • AL • • 0 • 110 • Table 1. State No. Plots No. Summary of Larch Casebearer Parasite

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:: 3450 October 1985 • • •• 43• EVALUATION OF LARCH CASEBEARER

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