9.4   Landscape Removal
   A.   Substantial modifications, as determined by the PDSD Director, and/or removal of plant materials or other landscape elements shall require review and of a revised landscape plan by PDSD.
   B.   The removal or destruction of landscape material that has been installed according to an approved landscape plan and not replaced constitutes a violation of the UDC.
   C.   Minor modifications of the landscaping occurring as a result of routine maintenance, necessary replacement of elements because of damage or disease, or other causes is not subject to review by PDSD.