Forest Pests Documents

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Detecting Forest Insect Pests in Canada

Goal(s)/Objective(s): Review McGugan's paper briefly, to describe the present capability of detecting forest insect pests in Canada, and finally, to offer a few comments about the future
Key Findings: If we possess enough knowledge about the systems involved and can monitor or measure the appropriate parameters, it might be possible to predict when and where outbreaks will occur.
Views: 1235
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Determination of Fenitrothion Residues in Honeybees and Their Products

Goal(s)/Objective(s): Describe the development of a gas-liquid chromatographic (GLC) method of analysis of the parent insecticide, its oxon and the cresol hydolysis product in honeybees (Apis mellifera L.) pollen, beeswax and honey from forested areas which had been treated with fenitrothion applied by aircraft.
Key Findings: Average recovery for the insecticide ranged from 84% in bees to 93% in honey.
Views: 1249
Downloads: 0
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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: 1287
Downloads: 1
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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: 1339
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: 1311
Downloads: 0
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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: 1337
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: 1161
Downloads: 0
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