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A Demonstration of Bacillus Thuringiensis, Plus the Enzyme Chitinase, Against the Spruce Budworm in Maine. Part I. Efficacy

Problem Addressed: Spruce Budworm in northern Maine
Goal(s)/Objective(s): Evaluate Bacillus thuringiensis and B.t. plus chitinase on controlling damage of the spruce budworm in northern Maine.
Key Findings: The B.t. alone treatments showed levels of crown damage that were indistinguishable from that of control plots.
Views: 1059
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Detecting Forest Insect Pests in Canada

Problem Addressed: Review of Blair McGugan's 1956 paper on the origins and development of the Canadian Forest Insect Survey.
Goal(s)/Objective(s): Describe capabilities of detecting forest insect pests
Views: 991
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Impact of 1985 forest insecticide spraying on Newfoundland pollinating insects

Problem Addressed: Insecticide aminocarb effects
Goal(s)/Objective(s): Study effect of aerial application of the insecticide aminocarb on native pollinating insects was studied in a commercial forest region norther of Gander, Newfoundland, during the summer of 1985.
Key Findings: No aminocarb spray on insect pollinators was noted.
Views: 1008
Downloads: 1
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Distribution and presistence of fenitrothion residues in foliage, soil and water in larose forest.

Problem Addressed: Insecticide residues in Larose forest.
Goal(s)/Objective(s): Summarize an operational experiment carried out in Larose Forest to study the persistence of aerially applied fenitrothion and its metabolites (the oxon analgue and 4-nitro-cresol) in white spruce foliage, soil and water samples collected from sprayed areas.
Key Findings: Degradation and persistence of fenitrothion findings are in reasonable agreement with those for the same chemical used in N.B. forests.
Views: 942
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Of Mites and Men

Problem Addressed: The right way to kill insects
Views: 1492
Downloads: 2
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Reduction of Reproductive Potential in Spruce Budworm (Lepidoptera: Tortricidae) by a Chitin-Inhibiting Insect Growth Regulator

Goal(s)/Objective(s): Examine the potential of UC-62644 to reduce the reproductive capabilities of spruce budworm that have been exposed to sublethal concentrations of this chemical during the last larval instar.
Key Findings: The dosages of UC-62644 incorporated into the test diets were sublethal and did not adversely affect larval or pupal survival.
Views: 790
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Response of Breeding Birds to Aerial Sprays of Trichlorfon (Dylox) and Carbaryl (Sevin-4-Oil) in Montana Forests

Goal(s)/Objective(s): Report the results of a pilot control project with trichlorfon (Dylox) and carbaryl (Sevin-4-Oil), with particular reference to the effects of the chemicals on 20 bird species.
Key Findings: No significant effects of trichlorfon or carbaryl sprays on the numbers of breeding pairs, bird abundance, nest success, mortality rates, or the activities of brain cholinesterase in the breeding population were detected.
Views: 924
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