Proceedings of the 81st Annual Pacific Northwest Insect Management Conference, held virtually January 10-11, 2022. These are research reports only, not management recommendations.
Douglas-fir (Pseudotsuga menziesii) is a commercially and ecologically important tree species native to western North America. The foliar pathogens Phaeocryptopus gaeumannii, the causal agent of Swiss Needle Cast, and Rhabdocline species, the causal agents of Rhabdocline needle cast, are two important pathogens specific to Douglas-fir. These pathogens are highly influenced...
Published August 1955. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Proceedings of the 45th Pacific Northwest Vegetable Insect Conference Management Conference, held January 13-14, 1986 at the Imperial Hotel in Portland, Oregon.
Proceedings of the 80th Annual Pacific Northwest Insect Management Conference, held virtually January 4-5, 2021.
These are research reports only, not management recommendations.
Proceedings of the 79th Annual Pacific Northwest Insect Management Conference, held January 6-7, 2020 at the Hilton Hotel in Portland, Oregon. These are research reports only, not management recommendations.
Proceedings of the 82nd Annual Pacific Northwest Insect Management Conference, held January 9-10, 2020 at the Hilton Hotel in Portland, Oregon. These are research reports only, not management recommendations.
Proceedings of the 77th Annual Pacific Northwest Insect Management Conference, held January 8-9, 2018 at the Hilton Hotel in Portland, Oregon.
These are research reports only, not management recommendations.
Proceedings of the 78th Annual Pacific Northwest Insect Management Conference, held January 7-8, 2019 at the Hilton Hotel in Portland, Oregon.
These are research reports only, not management recommendations.
The impact of various factors on seed production in a
Douglas-fir (Pseudotsuga menziesii) seed orchard in
western Oregon was examined by monitoring the fate of
seeds in thirty cones, stratified into three crown levels,
on each of ten trees during the 1984 growing season.
Cones were examined monthly between April...
Douglas-fir provides social, economic, and ecological benefits in the Pacific Northwest (PNW). In addition to timber, forests support abundant plant and animal biodiversity and provide socioeconomic viability for many rural communities. Products derived from Douglas-fir account for approximately 17% of the U.S. lumber output with an estimated value of $1.9...
Published May 1955. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Published August 1974. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Revised May 1959. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Revised March 1957. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Revised April 1966. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Revised March 1976. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog
Revised March 1970. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalog