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Washington SOD Blog: May 2012
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Tuesday, May 29, 2012. Natural stem infection of Lawson cypress (Chamaecyparis lawsoniana) caused by Phytophthora ramorum. This is the first report of C. lawsoniana. As a natural host of P. ramorum. In November 2010, P. ramorum. Was isolated from a 4 m long by 60 cm wide aerial phloem lesion on another mature C. lawsoniana. In a park near Clydebank, Scotland. There was heavy resinosis at the top of the lesion. Adjacent rhododendrons were also infected with P. ramorum. Ten other large C. lawsoniana. These...
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Washington SOD Blog: April 2014
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Wednesday, April 9, 2014. The 2014 National P. ramorum. Early Detection Survey of Forests is underway with an estimated 73 streams to be assayed in 12 states nationwide, similar to 2013 levels. The survey focuses on high-risk waterways near infested forests in CA and OR and previously positive waterways in AL, FL, GA, MS, NC, TX, and WA as well as waterways outside nurseries that may have received infected ornamental plants in these states, plus NY and PA. Steve Oak, the National P. ramorum. The causal a...
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Washington SOD Blog: Contained, but not eradicated
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Wednesday, April 9, 2014. Contained, but not eradicated. The war against sudden oak death in southwest Oregon forests wages on, but nursery diligence still makes a difference. Read the article by Ebba Peterson in the March Digger Magazine:. Http:/ c.ymcdn.com/sites/www.oan.org/resource/resmgr/files/Digger201403OSU.pdf. Subscribe to: Post Comments (Atom). Subscribe To Washington SOD Blog. Other websites you may be interested in:. California Oak Mortality task Force. Forest Phytophthoras of the World.
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Washington SOD Blog: June 2013
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Tuesday, June 11, 2013. IPhone app for diagnosing tree problems. Purdue University has a set of apps for the iPhone to diagnose insect and disease problems (including P. ramorum. On trees and ornamental plants. Android versions are under development. Https:/ www.purdueplantdoctor.com/. Monday, June 10, 2013. Soil solarization - a method for removing P. ramorum from infested soil. Soil solarization under the test conditions in CA appears to offer an effective means of eliminating P. ramorum. Citizen Scien...
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Washington SOD Blog: March 2014
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Wednesday, March 5, 2014. Stream monitoring for P. ramorum in WA, 2013 results. Washington Department of Natural Resources. Waterway monitoring as well as forest and nursery perimeter surveys have been conducted in Washington since 2003, with efforts since 2006 focusing on aquatic areas near previously positive nurseries. In 2013, 11. Subscribe to: Posts (Atom). Subscribe To Washington SOD Blog. Other websites you may be interested in:. California Oak Mortality task Force. Oregon Invasive Species Blog.
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Washington SOD Blog: July 2012
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Monday, July 16, 2012. From the July 2012 COMTF newsletter. A stream in western Washington and one in northern Georgia have been found P. From the July COMTF newsletter. Fourth genetic lineage of Phytophthora ramorum pathogen identified. The increasing intensity of the P. ramorum. Outbreaks in the UK led researchers to analyze samples from the new findings further, which resulted in the discovery of a fourth genetically distinct lineage of the pathogen. Read the full article here. View my complete profile.
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Washington SOD Blog: February 2013
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Tuesday, February 26, 2013. Learn how to keep exotic pest invaders, such as P. ramorum. Out of our forests, nurseries, and landscapes. Biosecurity posters now available from Food and Environment Research Agency (FERA), UK. at this link. Thursday, February 7, 2013. Changes in federal P. ramorum regulations. As of 12/10/12, the USDA Animal and Plant Health Inspection Service (APHIS) amended the federal order (FO) regarding advance notification for interstate shipments of P. ramorum. APHIS and the state reg...
forestpathology.org
Forest Pathology - Root Diseases
http://www.forestpathology.org/root.html
Forest and Shade Tree Pathology. This is a long page. Here are the contents:. Root and butt rots. Port-Orford Cedar Root Rot. Vascular Wilt - Black-Stain Root Disease. Root and butt rots. These are wood-decay diseases, and overlap with stem decays. Most are caused by Basidiomycota. They may get in through wounds in the lower part of the tree or penetrate roots directly. They involve the roots and in some cases the butt also. They may be found killing cambial tissues or growing in the inner wood:. Of matu...
