It shall be a misdemeanor, punishable by fine or imprisonment, in the discretion of the court, for any person selling seeds or plants in this State to use any evidence of certification, such as a blue tag or the word "certified," or both, on any package of seeds or plants unless such seeds or plants shall have been duly inspected and certified as provided for in this article or by a similar legally constituted agency of another state or foreign country. The duty of enforcing the provisions of this article shall be vested in the Commissioner of Agriculture.