Except as hereinafter provided it shall be unlawful for any person, (other than a city worker working within his/her assigned duties) to do any of the following acts, with respect to street trees, without a tree permit issued by the director of public works:
(1) Plant any tree within a tree maintenance strip;
(2) Move, remove, top, cut down, poison, set fire to or permit fire to burn in proximity to, or perform any act which results in the unnatural death or destruction of a street tree;
(3) Perform any activity that will interfere with or retard the natural growth of any street tree;
(4) Perform any work or permit any work to be performed within the drip line area of a street tree which would endanger the tree;
(5) Perform major maintenance on a street tree. (Ord. No. 1230, § 4 (part); Ord. No. 1300, § 4 (part).)