The board may:
(1) determine which noxious weeds are subject to control and what appropriate methods of control are to be used, including spraying, cutting, burning, tilling, or any other appropriate method;
(2) prescribe specific areas in the district in which control measures are to be used;
(3) prescribe the period during which control measures are to be used; and
(4) incur expenses and take other actions necessary to carry out the purposes of this chapter.