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Measurement of Vapour Pressure and Volatility from Foliage of Fenitrothion and Aminocarb

Problem Addressed: Use of insecticides against spruce budworm
Goal(s)/Objective(s): Describe measurements of the vapour pressures of pure and formulated fenitrothion and aminocarb from quartz sand, glass surfaces and plant foliage.
Key Findings: In our initial determinations of VP's from sand saturators, a doubling of the loading with either fenitrothion or aminocarb resulted in ≤2% change in the vapour pressures obtained. This indicated that the vapour space around the quartz particles was saturated and that the values obtained experimentally were equilibrium values under the conditions used.
Views: 781
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Getting off the Treadmill: Some Public Concerns About Our Spruce Budworm Program

Problem Addressed: Spruce budworm
Goal(s)/Objective(s): Describe the position and what to do about the issues of the state's responsibility in controlling budworm damage to privately owned forest lands, whether we are on an endless treadmill of spraying, what is being done to the environment and public health in the long term
Key Findings: Spraying of the private sector will end by 1981, will begin promotion of the development of a forest less susceptible to budworm, and will cease using any insecticide that poses distinct dangers to fish or any other nontarget animal or plant.
Views: 909
Downloads: 3
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Outcome-Based Forestry: A Case Study of the First Private Landowner’s Implementation of an Alternative to Maine’s Forest Practices Act

Goal(s)/Objective(s): Determine how participating landowners were incorporating OBF policy into their forest management planning and operations; learn how they were ensuring that the required outcomes under the agreement were being achieved; determine the effects of IW's enrollment in OBF, as perceived by their forest managers, upon IW as a corporation, upon society, and upon the foresters implementing the policy; determine if harvest plans created under the contraints of OBF produce lower rates of fragmentation compared to FPA harvest plans for the same landscape
Key Findings: OBF harvests more closely followed stand boundaries, fractured fewer stands, and maintained higher mean stand area, the spatial arrangement of harvesting is a critical factor in lowering fragmentation
Views: 859
Downloads: 7
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Evaluating the Influence of Stem Form and Vigor on Product Potential, Growth, and Survival for Northern Commercial Hardwood Species

Problem Addressed: Understanding how defects influence product recover and value; growth and mortality.
Goal(s)/Objective(s): A revised tree classification system
Key Findings: Stem form and vigor are highly variable across hardwood species; both attributes have important implications on hardwood growth & yield.
Recommendation: 4 classifications of stem form, 2 classifications of risk
Views: 810
Downloads: 6
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The Spruce Budworm in Maine in 1951

Problem Addressed: Spruce budworm in Maine
Goal(s)/Objective(s): Provide information on ground, aerial, and egg mass surveys, special studies of the effect of environment and natural control factors on budworm populations, and rearing of parasites.
Key Findings: Populations of large larvae and pupae were considerably less in most of the observation points and in the special study plots.
Recommendation: Although no spraying will be recommended for 1952 in Maine the State and timberland owners should continue to be prepared to combat the past if it increases to outbreak proportions.
Views: 952
Downloads: 4
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Compendium of Eastern Spruce Budworm Program Status Reports for the Eastern Canadian Provinces and Maine

Problem Addressed: Spruce budworm
Goal(s)/Objective(s): Describe budworm research projects being planned for initiation prior to June 30, 1980.
Key Findings: Sevin-4-Oil, or one or more of its constituents, potentiates the virus Herpes virus varicellae, the causative virus in chicken pox and "shingles".
Views: 871
Downloads: 4
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Effects of Forest Insect Spraying on Northern Maine Trout Streams

Problem Addressed: Spruce budworm effects
Goal(s)/Objective(s): Study the effects of DDT spraying on fish populations in the treated area.
Key Findings: Populations of brook trout and other fishes were reduced considerably by DDT spraying in 1958.
Views: 1094
Downloads: 1
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Environmental Impact and Efficacy of Imidan Used for Spruce Budworm Control in Maine

Problem Addressed: Spruce budworm
Goal(s)/Objective(s): Determine environmental impact and efficacy of Imidan as use as insecticide against spruce budworm
Key Findings: There is an apparent lag of between 7 and 14 days following spray before mortality rates are greater than observed in unsprayed areas. There is an apparent larval feeding deterrent action produced by the chemical.
Views: 1015
Downloads: 3
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