Results 81 to 90 of about 382 (145)

Olfactory receptor neuron responses of eastern spruce budworm, Choristoneura fumiferana Clemens. (Lepidoptera: Tortricidae) to female sex pheromones and host volatiles

, 2022
The spruce budworm (Choristoneura fumiferana Clemens), is a major defoliating pest of coniferous trees in North America. Defoliation of forests was limited to some degree in the early 1960s through the aerial application of DDT ...
Suresh, Thanusha
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The Response of the Balsam Fir Forest to a Spruce Budworm Invasion: A Simple Dynamical Model

, 1987
The parameter values of a simple dynamical model of a non-even age forest-insect ecosystem are estimated for the case of balsam fir forests and the eastern spruce budworm.
Fleming, R.A., Antonovsky, M.Y., Kuznetsov, Y.A.   +2 more
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Multiyear genotype characterization of eastern spruce budworm outbreaking populations from Quebec and adjacent regions

International audiencePopulation outbreaks are characterized by irruptive changes in population density and connectivity resulting in rapid demographic and spatial expansion, often at the landscape scale.
Underwood, Jessica, a R, James, Patrick, M A, Legault, Simon, Larroque, Jeremy, Wittische, Julian, Fontenelle, João, Pedro   +5 more
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Satellite remote sensing of cumulative spruce budworm defoliation in Prince Albert National Park [PDF]

, 2006
This thesis is a review and study of cumulative defoliation caused by spruce budworm in Prince Albert National Park as assessed using satellite remote sensing technology. The work presented is organized into three parts: 1) Chapter 1 and 2 is a review
Fan, Helton
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Coming Spruce Budworm Outbreak: Initial Risk Assessment and Preparation & Response Recommendations for Maine\u27s Forestry Community

, 2016
The Maine Spruce Budworm Task Force was formed in summer 2013 by the University of Maine’s Cooperative Forestry Research Unit (CFRU), Maine Forest Service (MFS), and Maine Forest Products Council (MFPC) to begin preparing for the next outbreak of the ...
Maine Forest Service, Cooperative Forestry Research Unit, University of Maine, Maine Forest Products Council   +2 more
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Compromising the Environment?: The Spruce Budworm, Aerial Insecticide Spraying, and the Pulp and Paper Industry in New Brunswick [PDF]

, 2002
Continual growth of the New Brunswick's pulp and paper industry since the late 1920s eventually brought the industry into conflict with the eastern spruce budworm (Choristineura fumiferana).
Rashid, Asaf
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Can Landscape-Scale Management Influence Insect Outbreak Dynamics? A Natural Experiment For Eastern Spruce Budworm

, 2009
The balance of evidence suggests forest insect outbreaks today are more damaging than ever because of changes in forest composition and structure induced by fire suppression and post-harvest proliferation of tree species intolerant to herbivory.
Fortin, M-J., Robert, L-E., Cooke, B., James, P., Quinn, V., Wolter, P., Sturtevant, B., Townsend, P., Kneeshaw, D.   +8 more
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Potential for defoliation by western spruce budworm in Douglas-fir stands in eastern Montana, 1975

Aerially visible defoliation by the western spruce budworm, Choristoneura occidentalis Freeman, increased from 149,250 acres in 1973 to 649,319 acres in 1974 on five eastern Montana National Forests.
United States. Forest Service. Northern Region. Forest Environmental Protection, United States. Forest Service. Northern Region. State & Private Forestry, Tunnock, Scott   +2 more
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From Twigs to Tree Rings: Fine Woody Debris Carbon Dynamics in Conifer Forests and Spruce Budworm Outbreaks in Eastern Hemlock

Fine woody debris (FWD; deadwood \u3c 10cm diameter) is often overlooked as a forest carbon component, despite comprising 28% of total deadwood carbon stocks in the United States.
Poppe, Rachel
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Pheromone Biosynthesis in the Spruce Budworm

, 1984
The biosynthesis of the trans-11-tetradecenal sex attractant pheromone of the eastern spruce budworm, Choristoneura fumiferana (Lepidoptera:Tortricidae} was examined both in vivo and in vitro, and shown to involve a trans-11-tetradecenyl acetate ...
Morse, David
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