(a) General rule.--When any agent shall find plant pests present on any nursery or dealer's premises, he shall notify the owner or person having charge of the premises by issuing a written inspection report and may issue a stop-sale order, listing plant pests found and prescribing treatment or control action to be taken.

(b) Stop-sale orders.--Plants under stop-sale order shall remain so until the agent is notified by the owner or person having charge of the premises that the prescribed treatment or action has been taken and a reinspection of the premises indicates the treatment has been effective.

(c) Partial infestation or infection.--If the agent finds that part of a nursery is infested or infected with any plant pests and that the remainder of it is not so infested or infected, the department may prescribe in writing such measures or precautions or may stipulate in writing such conditions for the use of the certificate of inspection as may, in its judgment, be necessary, and it may withhold the certificate of inspection until the conditions have been accepted in writing by the owner of the nursery.

(d) Violation.--Using the certificate of inspection without taking appropriate measures or precautions or observing the conditions shall be regarded as a violation of this act.