Every producer, or agent of the producer, who employs a labor contractor to provide a working crew for harvesting perishable agricultural products or who offers a bonus to those persons who harvest perishable agricultural products shall cause to be conspicuously posted and maintained on the premises where the agricultural products are to be harvested a notice that states:
(1) A description of the terms and conditions of any bonus offered, including the manner of determining when the bonus is earned.
(2) That portion of the labor contractor’s compensation that is based on the amount of work done by each employee of the labor contractor.