<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Osterbauer, N. K.</style></author><author><style face="normal" font="default" size="100%">Griesbach, J. A.</style></author><author><style face="normal" font="default" size="100%">Hedberg, J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Surveying for and eradicating Phytophthora ramorum in agricultural commodities</style></title><secondary-title><style face="normal" font="default" size="100%">Plant Health Progress</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2004</style></year></dates><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Since 2001, Oregon nurseries, Christmas tree plantations, and other sites have been surveyed for the federally regulated pathogen &lt;em&gt;Phytophthora ramorum&lt;/em&gt;. Host plants at each site were visually surveyed for disease symptoms and symptomatic tissues tested in the laboratory by isolation onto a selective medium and by a polymerase chain reaction (PCR) assay. In 2002 and 2003, we detected PCR-positive plants that later proved to be infected with another &lt;em&gt;Phytophthora&lt;/em&gt;, suggesting there are limitations to the PCR assay tested. In 2003, &lt;em&gt;P. ramorum&lt;/em&gt; was detected for the first time in &lt;em&gt;Viburnum, Pieris, Rhododendron&lt;/em&gt;, and &lt;em&gt;Camellia&lt;/em&gt; plants in six nurseries. All infected and neighboring plant materials were destroyed by incineration and the nurseries and surrounding environs subsequently surveyed for the pathogen. &lt;em&gt;Phytophthora ramorum&lt;/em&gt; was not detected, indicating the pathogen was successfully eradicated.&lt;/p&gt;</style></abstract></record></records></xml>