Food and Agricultural Code § 11710

A person that is regularly engaged in the business of tree surgery is not required to procure a license to remove diseased or infested tissues or apply disinfectants to wounds or cavities incidental to tree surgery. If such person desires to engage in any other pest control operation, he shall procure a license from the director, shall register with the commissioner as provided in Section 11732, and is subject to all other provisions of this division.