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The Spruce Budworm in Maine in 1971

Problem Addressed: Spruce budworm infestations

Goal(s)/Objective(s): Examine the budworm parasites, hoping to identify natural control agents.

Key Findings: The budworm problem is now increasing in area and intensity faster than trees can be cut.

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The Environmental Impact of Sevin

Problem Addressed: Insecticide use against spruce budworm

Goal(s)/Objective(s): Explanation of why Sevin has become a product of choice in forest insect control programs

Key Findings: Sevin carbaryl will continue to be selected for insect control programs where maximum environmental protection is desired

Downloads: 0

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The Impact of Two Experimentally-Applied Aminocarb Formulations on Stream Periphyton Communities

Problem Addressed: Adverse effects of insecticides used against spruce budworm

Goal(s)/Objective(s): Assess the impact of experimentally-applied Aminocarb Flowable and Aminocarb in 585 Oil on the microphytic component of stream vegetation.

Key Findings: Analyses of periphyton samples collected immediately following spray applicaiton and at 7h post spray in effect indicated no accumulation of aminocarb had occurred. However, ppm levels of fenitrothion were discovered in some samples and are thought to have been present in others.

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Aerial Application of Spruce Budworm Baculovirus: Tests of Virus Strains, Dosages and Formulations in 1977

Problem Addressed: Spruce budworm

Goal(s)/Objective(s): Five plots with a total area of 148 ha were treated with spruce budworm nuclear polyhedrosis virus to test 3 formulations, 2 dosages and 2 strains of virus against the spruce budworm

Key Findings: 750 billion polyhedra/ha gave a population reduction of 92% which is the best result obtained to date with a nuclear polyhedrosis virus treatment on spruce budworm.

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Impact of Experimental Spruce Budworm (Choristoneura fumiferana Clemens) Suppression Trials Upon Forest Dwelling Birds in Newfoundland in 1977.

Problem Addressed: Spruce budworm outbreak in Newfoundland that has steadily increased in size and intensity since 1971

Key Findings: Presents the results of studies carried out to determine the immediate and short-term effects of a series of experimental sprays upon forest dwelling birds exposed to the various treatment regimes.

Downloads: 0

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Aerial Spraying Operations Against Blackheaded Budworm on Vancouver Island, 1973

Problem Addressed: Spruce budworm and blackheaded budworm outbreak

Goal(s)/Objective(s): An aerial spray project conducted by the Council of Forest Industries of British Columbia and the Province of British Columbia to protect 29,000 acres of hemlock forest on northern Vancouver Island from additional defoliation by an outbreak of blackheaded budworm.

Key Findings: Monitoring of the effects of the operations on non-target organisms revealed that populations of juvenile salmon, songbirds and small mammals suffered no immediate ill effects. However, there was considerable mortality of several families of aquatic and terrestrial insects.

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Intensity of Sampling over Entire Area (1973)

Key Findings: List guidelines to determine the total number of field samples to be taken throughout and near the four major spray areas

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Pilot Control Project to Determine Efficacy of Acephate, Carbaryl, and Trichlorfon Against the Spruce Budworm (Choristoneura fumiferana (Clem.)) in Maine — 1976

Problem Addressed: Insecticide use against spruce budworm

Goal(s)/Objective(s): Conduct a pilot control project to evaluate the efficacy of three different insecticides in reducing larval populations of the budworm and minimizing the amount of defoliation to host trees.

Key Findings: Each of the insecticides could be effectively used against the spruce budworm with minimal and transitory effects on the environment.

Downloads: 0

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Spruce Budworm in Maine; The 1983 Maine Spruce Budworm Suppression Project

Problem Addressed: Spruce budworm in Maine

Goal(s)/Objective(s): Spray against spruce budworm areas with a potential for extreme and high budworm hazard

Key Findings: Conditions improved by the second week of June and all airports finished their operations by the morning of June 23.

Downloads: 3

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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

Downloads: 0

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