No dusting, spraying insecticide, or other flights of an agricultural nature shall be permitted off the airport without the direct permission of the Manager. This provision shall apply only to the hauling of such materials in aircraft from the airport and does not preclude the normal empty operation of agricultural aircraft to, and from, the airport.
('61 Code, § 3-6.37) (Ord. 44 C.S., passed 4-3-63)