No licensed agricultural consultant shall accept money or any other thing of value in excess of two hundred dollars ($200) from any person or entity for recommending or otherwise promoting a particular product by virtue of his or her position as a licensed agricultural consultant. However, this section shall not be construed or interpreted as prohibiting licensed agricultural consultants from engaging in and receiving compensation for agricultural research. The State Plant Board may suspend or revoke the license of any person which the board determines to have violated this section.