If the county forester finds it impossible to determine with certainty the existence of disease in any tree inspected by him, he may take a specimen or specimens from any such tree, which shall be forwarded for examination, diagnosis and report to either the phytopathology department, University of Maryland, or to the United States Department of Agriculture Station at East Orange, New Jersey. The action of the county forester shall await and be based upon the report received from such examination and diagnosis. (Mont. Co. Code 1965, § 113-10.)