Forest Pests Documents

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Residues of Chlorpyrifos-methyl in Balsam Fir foliage, forest litter, soil, stream water, sediment and fish tissue after double aerial application of Redlan®

Problem Addressed: Spruce Budworm and residues from insecticides
Goal(s)/Objective(s): Determine residues from Chlorpyrifos-methyl
Key Findings: Remnants of Chlorpyrifos-methyl in foliage, forest litter, soil, stream water, sediment, and fish tissue.
Views: 926
Downloads: 0
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Natural disturbance in an old-growth landscape of northern Maine, USA

Problem Addressed: Forest dynamics and succession in old-growth stand in northern Maine.
Key Findings: The abundance of shade-tolerant saplings, coupled with the absence of stand-replacing disturbance, has maintained canopy dominance by shade-tolerant species.
Views: 1077
Downloads: 2
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Dendrochronological reconstruction of spruce budworm outbreaks in northern Maine, USA

Problem Addressed: Detection of major spruce budworm outbreaks in Maine
Goal(s)/Objective(s): Reconstruct the history of major spruce budworm outbreaks in northern interior Maine using host–nonhost dendrochronological analyses, contrast the outbreaks detected in this region to those of eastern Canada; and evaluate the efficacy of using radial growth patterns of small spruce trees for the purpose of detecting outbreaks.
Key Findings: Small-diameter, slow-growing red spruces clearly express the typical budworm signal once ring-width data have been properly standardized.
Views: 1220
Downloads: 0
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Effects of Photoperiod and Size on Flight Activity and oviposition in the eastern spruce budworm (Lepidoptera: Torticidae)

Problem Addressed: Dispersal of adult females of eastern spruce budworm (Choristoneura fumiferana (Clem.))
Goal(s)/Objective(s): Determine effects of photoperiod on spruce budworm
Key Findings: The role of female activity as related to size and flight capability is therefore of potentially great significance in spruce budworm population dynamics and deserves further detailed investigation.
Views: 880
Downloads: 0
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Distribution and presistence of fenitrothion residues in foliage, soil and water in larose forest.

Problem Addressed: Insecticide residues in Larose forest.
Goal(s)/Objective(s): Summarize an operational experiment carried out in Larose Forest to study the persistence of aerially applied fenitrothion and its metabolites (the oxon analgue and 4-nitro-cresol) in white spruce foliage, soil and water samples collected from sprayed areas.
Key Findings: Degradation and persistence of fenitrothion findings are in reasonable agreement with those for the same chemical used in N.B. forests.
Views: 964
Downloads: 0
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A Review of Important Forest Insect and Disease Problems in the Terrace Bay District of Ontario 1950-1980

Problem Addressed: Terrace Bay District loss due to insects and diseases.
Goal(s)/Objective(s): Review signficant forest insects and diseases that have occurred in the Terrace Bay District between 1950 and 1980.
Key Findings: Information on insects and diseases that are capable of causing, or have caused, tree mortality or a reduction in growth.
Views: 952
Downloads: 1
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