Forest Pests Documents

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Parasitization of the spruce budworm, Choristoneura fumiferana (Clemens) (Lepidoptera: Tortricidae) by Brachymeria intermedia (Nees) (Hymenoptera: Chlaciddidae)

Problem Addressed: Spruce Budworm
Goal(s)/Objective(s): Study the use of the parasitoid Brachymeria intermedia to attack spruce budworm
Key Findings: The percentage mortality is considerably higher than the total native pupal parasitoid complex.
Views: 947
Downloads: 4
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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: 999
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: 1152
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: 1308
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: 962
Downloads: 0
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