Search Results - "Progar, R. A."

Population Densities and Tree Diameter Effects Associated with Verbenone Treatments to Reduce Mountain Pine Beetle-Caused Mortality of Lodgepole Pine by Progar, R. A, Blackford, D. C, Cluck, D. R, Costello, S, Dunning, L. B, Eager, T, Jorgensen, C. L, Munson, A. S, Steed, B, Rinella, M. J

“…Mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae: Scolytinae), is among the primary causes of mature lodgepole pine, Pinus…”
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Respiration from Coarse Woody Debris as Affected by Moisture and Saprotroph Functional Diversity in Western Oregon by Progar, R. A., Schowalter, T. D., C. M. Freitag, Morrell, J. J.

“…Decomposing coarse woody debris (CWD) is a conspicuous and important component of forest ecosystems. Seasonal temperature and precipitation patterns influence…”
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Five-Year Operational Trial of Verbenone to Deter Mountain Pine Beetle (Dendroctonus ponderosae; Coleoptera: Scolytidae) Attack of Lodgepole Pine (Pinus contorta) by Progar, R. A

“…The antiaggregation pheromone verbenone was operationally tested for 5 yr to deter mass attack by the mountain pine beetle on lodgepole pine in campgrounds and…”
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Inundative Release of Aphthona spp. Flea Beetles (Coleoptera: Chrysomelidae) as a Biological “Herbicide” on Leafy Spurge in Riparian Areas by Progar, R. A., Markin, G., Milan, J., Barbouletos, T., Rinella, M. J.

“…Inundative releases of beneficial insects are frequently used to suppress pest insects but not commonly attempted as a method of weed biological control…”
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Canopy arthropod assemblages along a precipitation and latitudinal gradient among Douglas-fir Pseudotsuga menziesii forests in the Pacific Northwest of the United States by Progar, R. A., Schowalter, T. D.

“…Insects are particularly sensitive to environmental conditions and can serve as responsive indicators of changing climatic patterns and habitat conditions…”
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Nuclear polyhedrosis virus as a biological control agent for Malacosoma americanum (Lepidoptera: Lasiocampidae) by Progar, R.A, Rinella, M.J, Fekedulegn, D, Butler, L

“…In addition to damaging trees, the eastern tent caterpillar is implicated in early fetal loss and late-term abortion in horses. In a field study, we evaluated…”
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Insect Production from Temporary and Perennially Flowing Headwater Streams in Western Oregon by Progar, R. A., Moldenke, A. R.

“…To evaluate the contribution of headwater streams to the forest ecosystem of the Pacific Northwest, we used emergence traps to examine the effect of stream…”
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Verbenone Reduces Mountain Pine Beetle Attack in Lodgepole Pine by Progar, R.A

“…Mountain pine beetle, Dendroctonus ponderosae, is the most common cause of mortality of mature lodgepole pine (Pinus contorta var. latifolia). In 2000-2002 the…”
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An entomopathogenic fungus and nematode prove ineffective for biocontrol of an invasive leaf miner Profenusa thomsoni in Alaska by Progar, R.A., Kruse, J.J., Lundquist, J.E., Zogas, K.P., Rinella, M.J.

“…A non-native invasive sawfly, the amber-marked birch leaf miner Profenusa thomsoni (Konow), was first detected in south-central Alaska in 1996 and is now…”
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Canopy arthropod response to density and distribution of green trees retained after partial harvest by Schowalter, T.D, Zhang, Y, Progar, R.A

“…We measured canopy arthropod responses to six contrasting green-tree retention treatments at six locations (blocks) in western Oregon and Washington as part of…”
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Five-Year Operational Trial of Verbenone to Deter Mountain Pine Beetle (Dendroctonus Ponderosae; Coleoptera: Scolytidae) Attack of Lodgepole Pine (Pinus Contorta) by Progar, R A

“…The antiaggregation pheromone verbenone was operationally tested for 5 yr to deter mass attack by the mountain pine beetle on lodgepole pine in campgrounds and…”
Get full text

Population Densities and Tree Diameter Effects Associated with Verbenone Treatments to Reduce Mountain Pine Beetle-Caused Mortality of Lodgepole Pine by Progar, R A, Blackford, D C, Cluck, DR, Costello, S, Dunning, L B, Eager, T, Jorgensen, CL, Munson, A S, Steed, B, Rinella, MJ

“…Mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Curculionidae: Scolytinae), is among the primary causes of mature lodgepole pine, Pinus…”
Get full text