Forest Pests: Spruce Budworm Documents

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Spray Deposit Assessment for the 1979 Spruce Budworm Suppression Project

Goal(s)/Objective(s): To determine the presence of insecticide in as many target and non-target areas as possible during the course of the spray project
Recommendation: Replace spray cards with foliage sampling and glass plates where Sevin is used
Views: 943
Downloads: 0
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Population Dynamics of the Major North American Needle-Eating Budworms (1993)

Problem Addressed: Western Spruce Budworm
Goal(s)/Objective(s): Analyze data from nine projects in six western States to provided 1,251 life tables and to produce projection capabilities for defoliation and successive budworm densities as functions of preceding density, site and stand attributes, interested influences, systematic year-to-year changes in survival, recent insecticide treatment, and weather.
Key Findings: The predator-limitation theory of Hairston and others (1960) is not adequate to explain population limitations in this group of herbivores
Views: 858
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Pulping of Budworm-Killed Balsam Fir (1982)

Problem Addressed: Spruce budworm-killed balsam fir
Goal(s)/Objective(s): Compare properties of the dead balsam fir to those of live, healthy fir.
Key Findings: Spruce budworm-killed trees had significantly decreased moisture contents; lower specific gravity and bark content, and smaller sized chips as a function of time-since-death.
Views: 823
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Insect Growth Regulators for Eastern Spruce Budworm Control — A Workshop Help at the Second Eastern Spruce Budworm Research Work Conference University of Maine, Orono, 16-18 January 1978

Problem Addressed: Eastern spruce budworm
Goal(s)/Objective(s): Outline research directions and priorities concerning insect growth regulators (IGRs) for possible use against eastern spruce budworm.
Key Findings: Discussion leading to influencing support forthcoming from the government, university and industry planners arranging the program
Views: 859
Downloads: 1
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The Significance of Non-Host and Alternative Host Tree Species on Populations of Larval Spruce Budworm, with Emphasis on Improving Sampling Techniques (1981)

Problem Addressed: Larval Spruce Budworm
Goal(s)/Objective(s): Evaluate spruce budworm populations and defoliation levels on host species of trees in Maine
Key Findings: Implications of regression analyses results with regard to implementation and recommendations for future work
Views: 742
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Degrade and Decay of Spruce-Fir Timber Following Spruce Budworm Attack (1978)

Problem Addressed: Spruce budworm destruction of over 300 million cords of balsam fir pulpwood and saw timber, with demand for balsam fir increasing continually.
Goal(s)/Objective(s): Information presented as a summary of what is known about spruce budworm-caused degrade and decay of balsam fir and, to a lesser extent, spruce.
Views: 858
Downloads: 4
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Economic Impact of the Spruce Budworm Outbreak in Newfoundland

Problem Addressed: Economic cost of spruce budworm issues
Goal(s)/Objective(s): Assess cost of spruce budworm
Key Findings: It is difficult to quantify the long-term impact of the outbreak on wood supplies and the forest environment and thus more research is required
Views: 982
Downloads: 0
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