WAC 16-487-040. Peach yellows, little peach, and red suture disease quarantine—Absolute quarantine for symptomless carriers

The following Prunus species are symptomless carriers of peach yellows, little peach, and red suture diseases. All planting stock of these species, except seeds, is prohibited entry into Washington state: Prunus americana , American plum Prunus cerasifera , cherry plum, myrobalan plum, "Antropurpurea" purple leaf plum Prunus domestica , European plum, prune Prunus hortulana , hortulan plum Prunus munsoniana , wild goose plum Prunus salicina , Japanese plum hybrids of any of the species named in this section and wild native species of plum.