1. Grounds, buildings and structures shall be maintained free of insect and rodent harborage and infestation. Extermination methods and other measures to control insects and rodents shall conform with the requirements of the health authority.
2. Parks shall remain free of accumulations of debris which may provide rodent harborage or breeding places for flies, mosquitoes and other pests.
3. Storage areas shall be so maintained as to prevent rodent harborage; lumber, pipe and other building material shall be stored at least one foot above the ground.
4. The growth of brush, weeds and grass shall be controlled to prevent harborage of ticks, chiggers and other offensive insects. Parks shall be so maintained as to prevent the growth of ragweed, poison ivy, poison oak, poison sumac and other noxious weeds considered detrimental to health. Open areas shall be maintained free of heavy undergrowth of any description.