California Code, Labor Code - LAB § 1160.4

(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.