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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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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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Aerial Photographic Techniques for Assessing the Impact of Spruce Budworm Defoliation in Maine

Goal(s)/Objective(s): Development of remote sensing techniques to better evaluate current feeding, tree and forest condition from past feeding, forest recovery after spraying, and mortality location from spruce budworm defoliation and other causes.

Key Findings: Tree and forest stand condition from past feeding was best interpreted on the CIR fall photos at scales of 1320 ft/in and larger

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