WAC 16-487-100
WAC 16-487-100. Peach rosette disease quarantine—Establishing quarantine
The director has determined that peach rosette disease is not present in the state of Washington and that the introduction of this disease would cause economic loss to the horticultural industries in the state. To prevent this loss, a quarantine is hereby established against the host plants and possible carriers of the phytoplasma that causes peach rosette disease.