Effective May 3, 2004, a Quarantine is hereby imposed against the importation into Alamosa, Conejos, Costilla, Rio Grande and Saguache Counties of Colorado of all plant material of the genus Prunus except for the following species:
Prunus besseyi
Prunus cistena
Prunus glandulosa
Prunus maackii
Prunus tomentosa
Prunus triloba
Prunus virginiana
8 CCR 1203-18-1.00