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The Spruce Budworm in Maine in 1963

Goal(s)/Objective(s): Report on the spruce budworm condition in Maine in 1963
Key Findings: Within the area sprayed twice, control was as good and probably better than previous operations.
Views: 1196
Downloads: 4
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The Spruce Budworm in Maine in 1964

Goal(s)/Objective(s): Report on the spruce budworm condition in Maine in 1964
Key Findings: Outside the main infestation area, budworm populations have declined. While 1963 was a good year for the spruce budworm and populations increased in all areas not subject to the spray program, 1964 was less favourable and remaining populations were reduced.
Views: 1115
Downloads: 2
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The Spruce Budworm in Eastern North America

Goal(s)/Objective(s): Discussion of the spruce budworm in eastern North America
Key Findings: Many facts about spruce budworm biology and behavior suggest that its long-term success is not closely tied, to individual trees or even stands--as are some less mobile insects, such as scales and even sawflies
Views: 1172
Downloads: 3
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Maine Spruce Budworm Aerial Spray Computer Users Guide

Problem Addressed: Spruce Budworm
Goal(s)/Objective(s): Provide estimates of a spray project's total operating cost, the number of spray teams required, the hours of flying time by aircraft type and airfield, and a detailed report listing the airfield and aircraft type recommended for each spray block.
Views: 1078
Downloads: 0
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Patterns of Balsam Fir Mortality Caused by an Uncontrolled Spruce Budworm Outbreak

Goal(s)/Objective(s): Determine the relationship of tree and stand mortality to cumulative defoliation, the variability in tree mortality within and between stands and its relation to tree, stand, and site characteristics, and to evaluate the accuracy of regression equations presented by MacLean (1980) for predicting stand mortality during an outbreak.
Key Findings: There is a need for quantitative predictions of the impact of uncontrolled budworm outbreaks on stand yield for use in timber supply projections and the best model of tree mortality caused by budworm is that of a constant proportion of the host volume or density (i.e. a linear relationship)
Views: 962
Downloads: 1
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Maine Spruce Budworm Spray Operations Manual

Problem Addressed: Spruce Budworm in Maine
Goal(s)/Objective(s): Provide a source of information and guidance for personnel involved with Maine spruce budworm suppression programs.
Views: 977
Downloads: 0
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Reduction of Reproductive Potential in Spruce Budworm (Lepidoptera: Tortricidae) by a Chitin-Inhibiting Insect Growth Regulator

Goal(s)/Objective(s): Examine the potential of UC-62644 to reduce the reproductive capabilities of spruce budworm that have been exposed to sublethal concentrations of this chemical during the last larval instar.
Key Findings: The dosages of UC-62644 incorporated into the test diets were sublethal and did not adversely affect larval or pupal survival.
Views: 790
Downloads: 0
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