Mo. Rev. Stat. § 274.260
Any person or persons or any corporation whose officers or employees knowingly induce or attempt to induce any member of an association hereunder or organized under similar statutes of other states with similar restrictions and rights and operating in this state under due authority, to break his marketing contract with the association, or who maliciously and knowingly spreads false reports about the finances or management or activity thereof, shall be guilty of a misdemeanor and be subject to a fine of not less than one hundred dollars and not more than one thousand dollars for each such offense; and shall be liable to the association aggrieved in a civil suit in the penal sum of five hundred dollars for each such offense.
§ 274.260, RSMo
RSMo 1939 § 14358