A minimum thirty-five-foot "non-disturbance buffer" shall be created immediately adjacent to the wetland, in which the following are prohibited: the clearing, trimming, pruning of vegetation, the grading, dredging, filling, and stockpiling of soil, the construction or installation of buildings or structures below ground, the construction of storm drains, sewers, or other underground utilities, the installation of leaching pools or other discharges, the storage, dumping or disposal of materials, the planting of non-wetland vegetation, and the application of fertilizers or pesticides, except that if such non-disturbance buffer contains any invasive plants that are not native to the wetland ecology, such vegetation may be removed and substituted with appropriate wetland vegetation, if approved by the Planning Board.