The director of the state experiment station may expend annually for mosquito extermination such amount of money as may be appropriated by the legislature.
All moneys so appropriated shall be paid out by the state comptroller upon the certificates of the director that the conditions and requirements of this article have been complied with.
The state comptroller shall draw his warrant in payment of all bills approved by the director and the state treasurer shall pay all warrants so drawn to the extent of the amount appropriated.
N.J.S. § 26:9-11