It shall be unlawful and a violation of this chapter for any person to do any of the following:
   A.   Deposit, store or maintain on city owned property any stone, brick, sand, concrete, lumber, tile, pipe, or other material which reasonably may be expected to impede the free passage of water, air or fertilizer to the roots of any tree, shrub or other plant.
   B.   Cause any gaseous, liquid or solid substance which because of the nature or amount reasonably may be expected to be toxic or otherwise harmful to trees, shrubs or other plants to be located where such substance reasonably may be expected to affect trees, shrubs, or other plants located on the city owned property.
   C.   Cause any fire to burn on city owned or private property if such fire, or the heat, smoke, or ash therefrom, reasonably may be expected to injure any portion of any tree, shrub, or other plant located on city owned property, provided, however, that this subsection shall not be construed as exempting any person from complying with state or city laws respecting burning, or a controlled burn designed to enhance the biological structure of an area. (Ord. 829, 3-3-1986)
   D.   Unless otherwise authorized by a permit obtained from the public works department, no person shall plant, prune, remove, destroy, break, cut, deface, or in any way injure or interfere with any tree or shrub in any right of way of any street or alley or on any property owned or maintained by the city. (Ord. 2062, 6-2-2003)