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Impact of the 1974-81 Spruce Budworm Infestation on the Forests of Cape Breton Island

Problem Addressed: Spruce budworm infestation on Cape Breton Island, Nova Scotia beginning in 1974.

Goal(s)/Objective(s): Determine what the overall effects of the SBW infestation on the Island forests was.

Key Findings: Volume of merchantable spruce/fir growing stock was reduced, degree of damage varied by covertype, and over half of the projected living merchantable spruce and fir trees died either during or immediately following the SBW attack.

Downloads: 3

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Report of the 1986 Midcycle Resurvey of the Spruce-Fir Forest in Maine

Problem Addressed: Budworm outbreak effecting 1980 survey of supply and demand for spruce-fir in Maine.

Goal(s)/Objective(s): Validate the earlier forecasts and to update them to account for new or unexpected developments.

Key Findings: Maine forests, at least within the survey region, are adequately stocked with young trees.

Downloads: 2

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Recommendations for Improvement of Spruce Budworm Population and Damage Survey Methods in the State of Maine

Problem Addressed: Spruce budworm in Maine

Goal(s)/Objective(s): Describe egg mass and defoliation survey; to check results of the egg mass survey, obtain more detailed information on budworm populations, and predict damage in the coming year.

Recommendation: Eliminate any branch beating surveys for spruce budworm and not using light trap data when populations are high.

Downloads: 2

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Getting off the Treadmill: Some Public Concerns About Our Spruce Budworm Program

Problem Addressed: Spruce budworm

Goal(s)/Objective(s): Describe the position and what to do about the issues of the state's responsibility in controlling budworm damage to privately owned forest lands, whether we are on an endless treadmill of spraying, what is being done to the environment and public health in the long term

Key Findings: Spraying of the private sector will end by 1981, will begin promotion of the development of a forest less susceptible to budworm, and will cease using any insecticide that poses distinct dangers to fish or any other nontarget animal or plant.

Downloads: 3

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Outcome-Based Forestry: A Case Study of the First Private Landowner’s Implementation of an Alternative to Maine’s Forest Practices Act

Goal(s)/Objective(s): Determine how participating landowners were incorporating OBF policy into their forest management planning and operations; learn how they were ensuring that the required outcomes under the agreement were being achieved; determine the effects of IW's enrollment in OBF, as perceived by their forest managers, upon IW as a corporation, upon society, and upon the foresters implementing the policy; determine if harvest plans created under the contraints of OBF produce lower rates of fragmentation compared to FPA harvest plans for the same landscape

Key Findings: OBF harvests more closely followed stand boundaries, fractured fewer stands, and maintained higher mean stand area, the spatial arrangement of harvesting is a critical factor in lowering fragmentation

Downloads: 7

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Evaluating the Influence of Stem Form and Vigor on Product Potential, Growth, and Survival for Northern Commercial Hardwood Species

Problem Addressed: Understanding how defects influence product recover and value; growth and mortality.

Goal(s)/Objective(s): A revised tree classification system

Key Findings: Stem form and vigor are highly variable across hardwood species; both attributes have important implications on hardwood growth & yield.

Recommendation: 4 classifications of stem form, 2 classifications of risk

Downloads: 6

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Spruce Budworm on Christmas Trees

Problem Addressed: Spruce budworm and use of insecticides effecting Christmas trees

Goal(s)/Objective(s): Control of insects on Christmas trees

Key Findings: Trees damaged by budworm or other insects should not be cut because if they are left for a few years they will often recover and become suitable for Christmas trees.

Downloads: 0

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Photometric Derivation of Analytical Parameters for Large Area Forest Management

Problem Addressed: Spruce budworm infestation in northeastern Canada and the United States

Goal(s)/Objective(s): Derive photometric parameters from historical satellite (Landsat) data toward an ultimate objective of aiding large area forest managers to cope with the massive spruce budworm infestation in northeastern Canada and the United States.

Key Findings: Use of satellite data (Landsat MSS) to measure and predict mortality as well as other analytical parameters related to coniferous forest management appears technically feasible.

Recommendation: A development effort be initiated with Maine's Department of Conservation to complement Maine's present Landsat Demonstration Program with the National Aeronautics and Space Administration for establishment of a mechanism for small forest landowners to benefit from satellite data.

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Planning Now to Reduce, Postpone or Prevent the Next Spruce Budworm Outbreak

Problem Addressed: Spruce budworm

Goal(s)/Objective(s): Introduces new entomological concepts, and asks as well as suggests how they may be used to develop an international strategy to reduce, postpone or perhaps even prevent future outbreaks from occurring through at least part of the range of the spruce budworm in North America

Key Findings: Ten general characteristics of spruce budworm infestation in Ontario are presented

Downloads: 2

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Budworm Surveys – Maine 1970’s.

Problem Addressed: Spruce budworm in Maine

Goal(s)/Objective(s): Outline Maine's standings with spruce budworm in the 1970's.

Downloads: 3

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