Cal. Food & Agric. Code § 5421

If the commissioner finds, after inspection, that any premises, plant, conveyance, or thing in his jurisdiction is infected or infested with any pest, he may in writing notify the record owner or person in charge or possession of the premises, plant, conveyance, or thing, that it is infected or infested with a pest. He may, to his satisfaction, require the person to eradicate, destroy, or control, the pest within the time which is specified in the notice.