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An Additional Note on Sampling Overwintering Spruce Budworm Larvae

Problem Addressed: Spruce Budworm
Goal(s)/Objective(s): Discuss conflicting results and reevaluate the washing technique.
Key Findings: The washing technique does extract most of the larvae from the foliage and counts on mid-crown branches give an accurate estimate of budworm abundance.
Views: 1023
Downloads: 2
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A Sampling Technique for Overwintering Spruce Budworm and its Applicability to Population Surveys

Goal(s)/Objective(s): Discussion of a more efficient system for monitoring populations of spruce budworm and predictive tool and its application.
Key Findings: Washing overwintering spruce budworm larvae from foliage is an efficient method of obtaining a population fix.
Views: 944
Downloads: 2
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Budworm Woodlot Management Program

Goal(s)/Objective(s): Explain the role of the Budworm Woodlot Management Program
Key Findings: Identify and map through interpretation of color infra red photography all spruce-fir forest types and budworm caused damage and mortality within these areas on a town-by-town basis wherever budworm damage and small ownerships exist within the Spruce-Fir Protection District of Maine.
Views: 1039
Downloads: 0
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Do Balsam Twig Aphids (Homoptera: Aphididae) Lower Tree Susceptibility to Spruce Budworm?

Problem Addressed: The balsam twig aphid and the spruce budworm have similar phrenologies and host requirements in eastern North America.
Goal(s)/Objective(s): Report on the negative effects of high twig aphid levels on the survival and developmental rates of spruce budworm on balsam fir.
Key Findings: Spruce budworm per branch clearly decreased as aphid levels increased.
Views: 916
Downloads: 0
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Spruce Budworm in Ontario, 1986

Problem Addressed: Spruce Budworm in Ontario
Goal(s)/Objective(s): Report outbreak status and results of spraying operations in 1986 and forescasts for 1987
Key Findings: Spruce budworm infestations declined in Ontario in 1986.
Views: 1018
Downloads: 0
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The Spruce Budworm in Maine in 1965

Problem Addressed: Spruce Budworm in Maine. There was no spruce budworm control in Maine during 1965.
Key Findings: After considering the 1964 data, entomologists of the Maine and U.S. Forest Services had recommended a "wait and watch" policy with regard to the budworm infestation with no treatment recommended for 1965.
Views: 996
Downloads: 3
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Effects of Spruce Budworm Outbreaks on the Productivity and Stability of Balsam Fir Forests

Goal(s)/Objective(s): Reviews the effects of spruce budworm caused defoliation on forest productivity, including radial and volume growth of both individual trees and stands, top-kill of trees, and rate of mortality in stands.
Key Findings: Spruce budworm outbreaks definitely disrupt the short-term stability of forest ecosystems by causing widespread tree mortality and loss of wood production, which in turn cause major forest management problems.
Views: 929
Downloads: 0
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