DEPARTMENT OF AGRICULTURE  
PESTICIDE AND PLANT PESTICIDE MANAGEMENT DIVISION  
REGULATION NO. 606. BLUEBERRY REGULATION  
(By authority conferred on the commission of agriculture by section 23 of Act No. 189  
of the Public Acts of 1931, as amended, being S286.223 of the Michigan Compiled Laws)  
R 285.606.1 Blueberry nursery stock.  
Rule 1. (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-likeplant  
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.  
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Courtesy of Michigan Administrative Rules  
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