(a) I, Don J. Wickham, as Commissioner of Agriculture and Markets of the State of New York, pursuant to the provisions of article 14 of the Agriculture and Markets Law, and for the purpose of preventing the introduction into this State of injurious insects, pests and plant diseases and the spread thereof, and deeming it necessary and fitting in order to carry out the purposes of said statute, do hereby, pursuant to said article 14, establish a quarantine prohibiting the entry into New York State of vegetable plants originating in areas outside of this State, except under conditions prescribed in the rules and regulations supplemental hereto (effective April 1, 1959) and when accompanied by a certificate or permit issued by a duly authorized official of the country, province or state in which such shipment originated.