Forest Pests: Spruce Budworm Documents

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Evaluation of Spruce Budworm Feeding Damage and Spray Success Using Remote Sensing

Problem Addressed: The evaluation of spray success using color and color infrared aerial photography
Goal(s)/Objective(s): Determine the location and amount of mortality caused by the spruce budworm, detect areas of new budworm attack earlier than with present models, identify forests requiring spraying or other control measures to prevent excessive tree mortality and timber loss from budworm attack more efficiently than with present methodology.
Views: 1171
Downloads: 1
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A History of the Effects of Aerial Forest Spraying in Canada on Aquatic Fauna

Problem Addressed: Pesticide spraying
Key Findings: Much progress has been made in discovering and eliminating undesirable side-effects of forest insect control operation in Canada on aquatic ecosystems, however, the role of many factors related to insecticide toxicity and side-effects still remain vague.
Views: 1155
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Documentation of Red Spruce Growth Decline

Goal(s)/Objective(s): A study to determine whether red spruce is declining in growth over much of its geographic range and if so, when the decline may have begun
Key Findings: The decline in growth of red spruce previously reported only for isolated locations is occurring throughout a sizable portion of the geographic region.
Views: 1160
Downloads: 1
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Effect of Pesticides on Cholinesterase from Aquatic Species: Crayfish, Trout and Fiddler Crab

Problem Addressed: Use of pesticides and the development of quantitative assays for low concentrations of these pesticides
Key Findings: Nineteen pesticides were tested for inhibition of cholinesterase activity derived from trout brain, crayfish nervous system and whole fiddler crabs. Inhibition by low concentrations of a few of these pesticides permitted a very sensitive and selective assay. Chlorinated pesticides as a class showed little inhibitory effect on trout and crab cholinesterase. Carbamates strongly inhibit all three enzymes.
Views: 1007
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Environmental Impact Studies of Spruce Budworm (Choristoneura Fumiferana Clemens) Control Programs in New Brunswick in 1976

Problem Addressed: Untoward effects to non-target organisms of the forest ecosystem increases as new products, dosage rates and pesticide combinations are introduced into the spray regime.
Goal(s)/Objective(s): Presents the results of studies carried out in New Brunswick to determine immediate effects and short-term impact of a series of trials employing several chemical insecticides at varying dosage rates upon breeding bird and small mammal populations and benthic organisms in treated streams
Key Findings: Aminocarb employed as an adulticide had no significant effects on bird or aquatic insect populations
Views: 878
Downloads: 0
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Pesticides in Forest Waters-Symptom of a Growing Problem

Problem Addressed: Pesticides in waters
Key Findings: We must become aware of the growing possibility of widespread contamination of the forest environment by a broad array of chemicals
Views: 932
Downloads: 0
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