Two nurseries positive for P. ramorum in May

Washington was found to have two P. ramorum-positive nurseries in May. (1) On 5/3 a Thurston County wholesale/production nursery was found to have P. ramorum-positive Mahonia nervosa and Viburnum tinus as a result of a nursery compliance inspection. This nursery ships interstate and was previously positive for P. ramorum in 2008. Trace-forward and -back investigations are underway. (2) A Snohomish County wholesale nursery was determined to have P. ramorum-positive Rhododendron sp. on 5/6 as a result of a nursery compliance inspection. This nursery ships interstate and was previously positive for P. ramorum in 2008. Trace-forward and -back investigations are underway.