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Bacillus thuringiensis Operation Project – Spruce Budworm Control in Maine 1978

Problem Addressed: Spruce Budworm in Maine

Goal(s)/Objective(s): Analyze use of Bacillus thuringiensis, formulated as Thuricide 16B, as insecticide against spruce budworm.

Key Findings: The "BT" treatment must be considered as successful since the treated forest appeared green and quite healthy.

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B.t. Budworm Spray is Innocuous to Aquatic Insects

Problem Addressed: Possible side effects with the use of Bacillus thuringiensis as insecticide against spruce budworm

Key Findings: Nobody has been able to detect mortality of aquatic insects during an operational B.t. budworm spray.

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An Evaluation of Bacillus Thuringiensis in Protecting Forests from Attack of the Spruce Budworm

Problem Addressed: Spruce Budworm

Goal(s)/Objective(s): Evaluate the efficacy of Bacillus thuringiensis and certain adjuvents in protecting the foliage of balsam fir and red spruce from attack of epidemic populations of the spruce budworm.

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An Assessment of Damage Caused by the Spruce Budworm on Spruce and Balsam Fir Trees in New Brunswick

Problem Addressed: Spruce budworm damage

Goal(s)/Objective(s): Assess sample pots on all ownerships in New Brunswick to determine the damage caused by spruce budworm

Key Findings: Damage to balsam fir was much greater than that of spruce and was highest on the small freehold ownership, especially in southern New Brunswick

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An Economic Analysis of Southern Pine Beetle Suppression Activity on the Gulf Coastal Plain National Forests During 1985 and 1986.

Problem Addressed: The Southern Pine Beetle

Goal(s)/Objective(s): Analyze the efficiency of SPB suppression on the Gulf Coastal Plain national forests.

Key Findings: SPB suppression projects on the national forests in the Gulf Coastal Plain were economically justified during 1985 and 1986; and greater benefits and efficiency were achieved for greater average spot-size controlled.

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An Evaluation of Microcomputer Applications for Spruce Budworm Data Management in New Brunswick

Problem Addressed: Spruce budworm data

Goal(s)/Objective(s): Examine the merits of a microcomputer-based approach in accommodating the data handling and analysis requirements.

Key Findings: The hardware configuration of a 512K RAM microcomputer (running MsDOS), at least one floppy disk drive, and a Bernoulli drive system.

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Analyses and Recommendations for Spruce Budworm Survey Sampling and Decision-Making on Small Land Ownerships in Maine

Problem Addressed: Privately owned commercial forest land spruce budworm spraying

Goal(s)/Objective(s): Evaluate spruce-fir mortality on small ownerships, determine salvage needs, and disseminate information to the landowner.

Key Findings: Five things should be done, and are explained in the report

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An Important Unknown in Interpreting the Infestation Dynamics of the Spruce Budworm

Problem Addressed: Spruce Budworm

Goal(s)/Objective(s): Provide a change of pace in proceedings of the Forum and stretch imaginations for improving forest pest management strategies

Key Findings: The precise time of moth dispersal became known though incidental observation in Petawawa

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Analysis of Relative Benefits of the Spruce Budworm Control Program

Problem Addressed: Spruce Budworm

Goal(s)/Objective(s): Measure the loss of the public sector relative to the losses of the private sector that would be incurred if the spruce budworm epidemic is not controlled in the 1976 proposed project area.

Key Findings: The relative losses and benefits accruing to public and private interest from a Budworm Management Program are the basis for determining the equitable burden.

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Analysis of the 1979 Check Cruise of the Maine Spruce Budworm Growth Impact Study

Problem Addressed: Double checking the accuracy and uniformity of measurements between and among crews providing data to the Maine Spruce Budworm Growth Impact Study

Goal(s)/Objective(s): Report the analysis of the check cruise data obtained during August and September, 1979.

Key Findings: Results of the 1979 check cruise appear to be comparable to those of the 1975 check cruise conducted by James W. Sewall Company

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Forest Pests: Spruce Budworm Documents

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