Section 285.606.1. Blueberry nursery stock.

(1) Blueberry nursery stock offered for sale, sold, shipped, or otherwise transported into or within this state shall be propagated from scionwood obtained from plants inspected and certified to be  apparently free from plant virus  diseases,  virus- like plant diseases, and other contagious plant diseases. Such nursery stock and scionwood source plants shall be isolated more than 500 feet from plants which  do not  meet  the disease tolerance provided for in subrule (2) of this rule.

(2)  Fields of blueberry nursery stock and scionwood source plants to  be certified shall be inspected at least once during each  growing   season  and shall not contain more than a total of 0.3% of plants with a virus disease or plants with a virus-like disease, and 0.3% plants otherwise infected with Fusicoccum sp., Phomopsis sp., or systemic plant diseases.

(3)   When making inspections of blueberry nursery  stock  or   scionwood source fields, plant  industry  division   inspectors  shall   place  a conspicuous distinguishing mark on each plant infected with a virus disease, a virus-like disease, or other systemic disease. Plants so marked shall be destroyed or killed by the grower within 10 days.

(4)   Blueberry plants, scionwood, or cuttings shipped or transported into or within the state  of  Michigan  shall  be   accompanied   by   a   valid certificate of inspection setting forth the fact that plants, scionwood, or cuttings have been inspected and certified   in   accordance   with   the provisions of this rule.

History: 1954 AC; 1979 AC; 1984 AACS.