Food and Agricultural Code section 5491

If any pest is found to exist in any public park or along any street, highway, or other property which is subject to the control of a city or county, the notice of abatement shall be served on the chairman of the governing body of the city or county. If the eradication, control, or destruction of the pest is performed by the commissioner, the cost of the eradication, control, or destruction is a city or county charge, as the case may be, and shall be paid from the general fund of the city or county.