Pesticides: Insecticides Documents

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A Review of Studies in Maine on the Impact of Aerial Applications of Sevin-4-oil on the Macroinvertebrate Fauna of Streams and Ponds

Problem Addressed: Effects of Sevin-4-oil
Key Findings: Evidence of a relatively severe impact on the fauna and persistence of residues in the sediment indicate that ponds as well as streams should be included in future monitoring programs
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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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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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Spruce Budworm Adult Spray Tests New Brunswick 1977

Goal(s)/Objective(s): Determine the effect on the insemination of resident females, of air-to-ground spraying timed to kill males.
Key Findings: Confirmed that the conclusion from the 1976 spray trials that air-to-ground spraying selectively kills old females was confirmed
Views: 1010
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