It shall be unlawful for any agricultural employer or association of agricultural employers, or any person who acts as a labor relations expert, adviser, or consultant to an agricultural employer, or who acts in the interest of an agricultural employer, to pay, lend, or deliver, any money or other thing of value to any of the following:
(a) Any representative of any of his agricultural employees.
(b) Any agricultural labor organization, or any officer or employee thereof, which represents, seeks to represent, or would admit to membership, any of the agricultural employees of such employer.
(c) Any employee or group or committee of employees of such employer in excess of their normal compensation for the purpose of causing such employee or group or committee directly or indirectly to influence any other employees in the exercise of the right to organize and bargain collectively through representatives of their own choosing.
(d) Any officer or employee of an agricultural labor organization with intent to influence him in respect to any of his actions, decisions, or duties as a representative of agricultural employees or as such officer or employee of such labor organization.