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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: 1197
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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: 916
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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: 967
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Persistence of Dylox Residues in a Forest and Lake Environment

Goal(s)/Objective(s): Determine the initial concentration and the persistence of Dylox residues in the forest environment and in water
Key Findings: Detectable residues of Dylox persisted on leaves, twigs and in forest litter for at least 106 days after spraying, although the levels of residues decreased rapidly during the first week
Views: 854
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Optimum Swath Widths and Application Rates for Selected Aircraft and Meteorological Regimes

Goal(s)/Objective(s): Determine optimum swath widths and spray application rates which achieve a uniform coverage of 20 to 25 drops per square centimeter at the top of the forest canopy under various meteorological conditions for five different types of spray aircraft.
Views: 927
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Operational Test of Zectran (Mexacarbate) Against the Spruce Budworm (Choristoneura Fumiferana Clem.) in Maine, 1973

Problem Addressed: Spruce Budworm
Goal(s)/Objective(s): Determine the efficacy of reduced application rates and dosage levels in reducing larval populations of the budworm and minimizing the amount of defoliation occurring in a given year
Recommendation: A single application of a finished spray of mexacarbate and kerosene, applied at a rate of 0.25 gallon/acre containing 0.15 lbs. AI, when budworm larvae are in the 4th and 5th instars, will effectively reduce budworm populations and minimize defoliation on balsam fir
Views: 1072
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