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Zectran Pilot Test to Control Spruce Budworm in Belmont and Chamberlain Creeks, Blackfood River Drainage, Montana

Problem Addressed: Spruce Budworm
Goal(s)/Objective(s): Determine the aerial transport of smoke within the spray areas, and optimum spray time.
Key Findings: Budworm population was reduced 47.8 ± 5.5 in Chamberlain Creek and 70.0 ± 4.2 in Belmont Creek.
Views: 824
Downloads: 0
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Balsam Fir (Abies Balsamea (L.) Mill.) Phenology in Maine

Goal(s)/Objective(s): Facilitate the critical timing of spruce budworm sampling, the initiation of spray programs, and should enable an observer to predict the occurrence of phenological events throughout the state.
Key Findings: The area of latest phenology occupies the general region of the state north of Greenville and west of Ashland.
Views: 971
Downloads: 1
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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: 1050
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: 964
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: 1060
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: 943
Downloads: 0
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