Forest Pests Documents

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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.
Views: 958
Downloads: 9
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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
Views: 944
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.
Views: 959
Downloads: 0
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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.
Views: 915
Downloads: 0
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Gone with the Wind: Silvicultural Methods for Reducing Wind Damage After Cutting in Spruce and Fir Stands (1979)

Problem Addressed: Wind as a damaging agent to forests.
Key Findings: Clearcutting should be regarded as a last resort, when neither the uniform or strip shelterwood approaches are possible, as well suggesting a more sophisticated silvicultural approach.
Views: 797
Downloads: 1
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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.
Views: 707
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.
Views: 785
Downloads: 0
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Final Report Study of Spruce Budworm (Lepidoptera: Tortricidae) and Spruce Coneworm (Lepidoptera: Pyralidae) Behavior on Red Spruce as it Relates to Host Phenology and Damage March 19, 1985

Problem Addressed: Spruce budworm and spruce coneworm
Goal(s)/Objective(s): Study the feeding and concealment behaviors of spruce budworm, and spruce coneworm, on red spruce, conducted in Maine in 1984
Key Findings: Neither species was effectively controlled on red spruce. However, these results are not representative of the entire spray project as both BT and Zectran did provide better results on other operational spray blocks.
Views: 761
Downloads: 2
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Report of the Spruce Budworm Committee (1977)

Problem Addressed: Spruce budworm in Newfoundland
Goal(s)/Objective(s): Review a broad representative cross section of the literature pertaining to the budworm problem including internal government and unpublished documents and reports on the following aspects of the problem: a. the probable effects of the current budworm epidemic on the forest resources and the forest industry in the Province; b. the realistic solution alternatives to the current budworm problem and cost implications of each.
Key Findings: 11 recommendations are proposed by this Committee of a general prescriptive nature.
Views: 953
Downloads: 0
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