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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.

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Long-term Effects of Fenitrothion Spray Programs on Non-Target Terrestrial Arthropods

Problem Addressed: Use of insecticides as spruce budworm control

Goal(s)/Objective(s): Describe the methods of approach and the interim results to questions regarding spray programs against spruce budworm

Key Findings: The perennial trends of densities in this array of predatory, phytophagous, and fungivorous arthropods do not support the hypothesis that fenitrothion has a profound influence on the community resident in balsam fir crowns.

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The Spruce Budworm in Maine in 1968

Problem Addressed: Spruce budworm in Maine in 1968

Goal(s)/Objective(s): Check on budworm development, larval and egg mass surveys, and aerial surveys for defoliation

Key Findings: The spruce budworm infestation can be expected to continue and probably intensify in the Oxbow area during 1969, given favorable weather conditions for the insect.

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The Spruce Budworm in Maine in 1968

Problem Addressed: Spruce budworm in Maine in 1968

Goal(s)/Objective(s): Check on budworm development, larval and egg mass surveys, and aerial surveys for defoliation

Key Findings: The spruce budworm infestation can be expected to continue and probably intensify in the Oxbow area during 1969, given favorable weather conditions for the insect.

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The Uptake of Sevin by Pacific Oysters and Bottom Muds

Problem Addressed: The insecticide Sevin's effects

Key Findings: While Sevin residue in bottom mud was present at a higher level than in oysters following direct application, it declined rapidly to a barely detectable level in 8 days and disappeared by the 16th day.

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Zectran Pilot Test to Control Spruce Budworm in Belmont and Chamberlain Creeks, Blackfood River Drainage, Montana

Problem Addressed: Spruce Budworm

Goal(s)/Objective(s): Determine the aerial transport of smoke within the spray areas, and optimum spray time.

Key Findings: Budworm population was reduced 47.8 ± 5.5 in Chamberlain Creek and 70.0 ± 4.2 in Belmont Creek.

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A Test of Orthene Insecticide Against the Spruce Budworm in Maine in 1982

Problem Addressed: Spruce Budworm

Goal(s)/Objective(s): Test two formulations of Orthene against the spruce budworm.

Key Findings: Spray deposit was inconsistent among the three applications

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The Spruce Budworm in Maine in 1950

Problem Addressed: Spruce Budworm in Maine

Goal(s)/Objective(s): Determine the effect of natural factors of control, the rearing of parasites, and experimental tests in airplane spraying.

Key Findings: An appraisal of the budworm situation in Maine with recommendations for 1951 is given.

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The Spruce Budworm in Maine 1970

Problem Addressed: Overview of Spruce Budworm problem in Maine in 1970

Key Findings: 210,000 acres in the Oxbow area of northern Aroostook County were sprayed with fenitrothion in 1970 to control the spruce budworm and protect trees

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Reduced Application Rates of Orthene Forest Spray Give Less Effective Spruce Budworm Control in Maine – 1978

Problem Addressed: Spruce Budworm

Goal(s)/Objective(s): Compare 4 different concentrations of acephate (tank mixes) applied at different volume rates.

Key Findings: Reducing application rates of Orthene Forest Spray formulations from 64 fl oz per acre to 32 fl oz per acre or less decreased budworm control in Maine

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