No person shall interfere with the Superintendent or persons acting under his authority while engaged in planting, mulching, pruning, trimming, spraying, treating or removing any tree, shrub or plant in any street, park, pleasure ground, boulevard, alley or public place of the city, or in the removing of any stone, cement or other substance from about the trunk of any tree, shrub or plant in any such street, park, pleasure ground, boulevard or alley or public place.
('86 Code, § 14.08.040) (Ord. 2282, passed  - - )  Penalty, see § 1.12.010