Sudden oak death, Phytophthora ramorum

Sudden Oak Death (SOD) is a plant disease caused by the water mold Phytophthora ramorum. This organism causes disease in more than 100 species of trees, shrubs, herbs, and ferns.Published June 2007. Reviewed July 2013. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo

Stop the spread of sudden oak death

Alerts people who visit, live, or work in certain areas of Oregon and California about a serious plant disease called Sudden Oak Death, and asks them to take steps to prevent spreading the disease. Gives action steps, shows disease symptoms on various host plants, and gives numerous sources for more information. Full color. Photos. Contains revised quarantine information for areas in Curry County, Oregon, as of March 2013.Keywords: phytophthora ramorum, oak deathRevised January 2012. Revised March 2013. 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/catalo

Common insect pests and diseases of shore pine on the Oregon coast

Shore pine is a subspecies of lodgepole pine that inhabits the coastal strip in Oregon. Insect pests, diseases, and nonbiological (abiotic) factors may have an impact on growth, visual appearance, and productivity of trees. In this publication, we review the general nature of shore pine in Oregon and the common nonbiological, insect pest, and disease problems that impact tree health.Published September 2010. Reviewed November 2014. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogKeywords: Oregon coast, diseases, Pinus contorta Douglas ex. Louden var. contorta, shore pine, insect pest

Managing insects and diseases of Oregon conifers

Discusses options for managing major insect pests and diseases of conifers in Oregon forests: bark beetles, wood borers, and ambrosia beetles; defoliators; aphids, adelgids, and scale insects; terminal and branch insects and pitch moths; root diseases; stem decays; foliage diseases; canker diseases and canker-causing rust diseases; and mistletoes. Extensive references section. Full color throughout.Published June 2009. Reviewed November 2015. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogKeywords: conifer diseases, forest management, forest pests, forest diseases, conifer pests, silviculture, forest healthKeywords: conifer diseases, forest management, forest pests, forest diseases, conifer pests, silviculture, forest healt

Common insect pests and diseases of Sitka spruce on the Oregon coast

Publication examines the wide variety of insect pests, diseases and environmental conditions that can affect Sitka Spruce along the coastline of Oregon.Published January 2015. 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/catalogKeywords: Fungi, Sitka Spruce, Pests, Spruce, Disease

Swiss needle cast of Douglas-fir in Oregon

What is it? Swiss needle cast of Douglas fir is a foliage disease caused by the fungus Phaeocryptopus gaeumannii. The disease is specific to Douglas-fir, affecting no other tree species.Published January 2008. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo

Stop the spread of sudden oak death

Alerts people who visit, live, or work in certain areas of California and Oregon about a serious plant disease called Sudden Oak Death, and asks them to take steps to prevent spreading the disease. Gives action steps, shows disease symptoms on various host plants, and gives numerous sources for more information. Full color. Photos. Contains revised quarantine information for areas in Curry County, Oregon, as of January 2012.Revised December 2009. Revised January 2012. 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/catalo

Diseases and insect pests of Pacific madrone

Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogPacific madrone (Arbutus menziesii) is a broadleaf evergreen tree famous for its smooth, reddish-orange bark (Figure 1). A Pacific Northwest native, it grows from southern California to Vancouver Island. In Oregon1, Pacific madrone is most abundant in Jackson, Josephine, and Douglas counties, but it grows in every county west of the Cascade crest, usually on warm sites with shallow, rocky soils

Stop the spread of sudden oak death

Published November 2009. A more recent revision exists. 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/catalo