No person shall remove, prune, cut, molest, break, deface, destroy, spray, repair, or do surgery work upon any tree or part thereof, or in any manner interfere with, disturb, or injure any tree, shrub, or plant, upon parking or the public property of the City. No person shall permit any chemical, either solids or fluids, to seep, drain, or be emptied on or about any tree, shrub, or plant that is now or may hereafter be growing upon any public property of the City, without first obtaining a permit from the City Administrator.