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Laboratory Evaluation of the Toxicity of Insecticides to Forest Insect Pests and Non-Target Insects in 1986

Problem Addressed: Use of the insecticide SAN 811-I

Goal(s)/Objective(s): Determine the persistence of a new insect growth regulator, UC 84572 in aquatic systems.

Key Findings: Permethrin appears to be 1-2 orders of magnitude more toxic than methoxychlor by either exposure route.

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Fenitrothion Residues in Honeybees and Their Products Collected From Forested Areas Sprayed with the Insecticide for Budworm Control

Problem Addressed: Fenitrothion effects on honeybees

Goal(s)/Objective(s): Results and observations made in an extensive three-year study program undertaken in 1972 to determine the effect of fenitrothion applied by aircraft at operational levels on honeybees and its residues, if any, in 122 honeybee, pollen, beeswax and honey samples collected from sprayed forest areas in the provinces of Ontario and Quebec.

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Plantation Research: XII. Experimental Applications of Insecticides by Mistblower for Control of Choristoneura fumiferana on White Spruce in Quebec, 1974

Problem Addressed: Spruce Budworm

Key Findings: Applications of commercial preparations of Bacillus thuringiensis at up to 8 BIU per acre did not provide significant levels of foliage protection when timed against peak third-instar larvae.

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Final Report on The Effects of Forest Spraying on Reproduction in Smallmouth Bass Populations in Washington County

Problem Addressed: Smallmouth bass waters lie within the proposed spray area for operational control of spruce budworm

Key Findings: No direct fish mortality or physiological and behavioral responses were observed because of the doses used, the low toxicity, and the avoidance of direct application in the lake.

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Strategic Chemicals for Protection of Coniferous Forests from insect Pests

Problem Addressed: Pests that are destructive to coniferous forests.

Key Findings: Fenitrothion is the no. 1 strategic chemical, followed by phosphamidon and Matacil, for the protection of coniferous forests from defoliating insects, taking into consideration efficacy against the target insects, safety to the other components of the forest ecosystem, economics, availability, adaptability to various formulations and modes of application

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Summary Report of Pesticide Atomization and Dispersal Research, Report to the 14th Annual Forest Pest Control Forum

Goal(s)/Objective(s): This report summarizes the main thrusts of FP-62 activity during the past year.

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The Biological Side-Effects of Fenitrothion in Forests Ecosystems

Problem Addressed: Fenitrothion was both efficacious against spruce budworm larvae and of low hazard to fish and wildlife compared with its predecessors and with compounds available currently

Key Findings: Fenitrothion presents only negligible environmental impact if used as directed

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The Effect of an Experimental Application of Dimiln Upon Selected Forest Fauna

Key Findings: No immediate or short term effects of Dimilin treatment on small forest songbirds or colonies of domestic honey bees. Small mammal populations in the treatment area were too low to assess insecticide impact. Further studies of the short and long term effects of this compound on non-target organisms are recommended, particularly with respect to components of aquatic ecosystems.

Recommendation: Further field and laboratory testing of the effects of Dimilin on non-target organisms

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The Effects of Fenitrothion, Matacil and Orthene on Frog Larvae

Problem Addressed: Insecticide effects on frog larvae

Key Findings: Orthene and Matacil are as effective as fenitrothion in control of the target organism and of lower toxicity to anuran larvae

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A Preliminary Report on the Effects of a Split Application of Reldan on Aquatic and Terrestrial Ecosystems

Problem Addressed: Application of RELDAN, pesticide

Key Findings: Knockdown of terrestrial invertebrates was slight, involving primarily small flying Diptera, but also Hymenoptera, Araneida and Plecoptera. Effects of the first spray were more pronounced, presumably due to warmer temperatures and increased insect activity.

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