Washington had two new and one repeat P. ramorum-positive waterway detections in June. One of the new positives was detected upstream from a 2010 positive site. The positive stream feeds into the Sammamish River. The other new positive was detected in a watershed sub-basin adjoining the Sammamish River. The repeat detection site has been positive since 2010 and is in a stream that feeds into the Sammamish. While the exact source of the inoculum remains unknown, genetic evidence points toward previously positive nurseries in the associated watershed.
From the July COMTF newsletter
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