Lab. Code, § 1160.4

(a) The board may, upon finding reasonable cause to believe that any person has engaged in or is engaging in an unfair labor practice, petition the superior court in any county wherein the unfair labor practice in question is alleged to have occurred, or wherein the person resides or transacts business, for appropriate temporary relief or restraining order. Upon the filing of the petition, the board shall cause notice thereof to be served upon the person, and thereupon the court shall have jurisdiction to grant to the board such temporary relief or restraining order as the court deems just and proper.

(b) (1) In addition to any harm resulting directly from an adverse employment action or other allegedly unlawful action, the court shall consider the indirect effect upon protected rights of all agricultural employees of the employer in determining whether temporary relief or a restraining order is just and proper.

(2) When the alleged unfair labor practice is such that, by its nature, it would interfere with the free choice of employees to choose or not choose an exclusive bargaining representative, appropriate temporary relief or a restraining order shall issue on a showing that reasonable cause exists to believe that the unfair labor practice has occurred. The order shall remain in effect until an election has been held or for 30 days, whichever occurs first. Thereafter, a preliminary injunction may issue if it is shown to be just and proper.

(c) Notwithstanding Section 916 of the Code of Civil Procedure, temporary relief or restraining orders granted pursuant to this section shall not be stayed pending appeal.