California Pest Rating for Ditylenchus destructor Thorne, 1945 Pest Rating: A   PEST RATING PROFILE Initiating Event: On June 1, 2016, the USDA added Ditylenchus destructor to the ‘List of Pests No Longer Regulated at U.S. Ports of Entry’. Consequently, the risk of introduction and establishment of Ditylenchus destructor in California is evaluated and … Continue reading Ditylenchus destructor Thorne, 1945 →