Reduce or eliminate the need for outdoor chemicals, including pesticides and herbicides, for property maintenance through the use of native plants in landscapes, and minimizing lawn areas. Alternative methods include a lawn maintenance plan focusing on mulching grass clippings, aeration of lawn in the fall, and cultivation of local grass species. Visit the listing of NOFA Accredited Professionals to locate a certified professional in your area. Soil tests performed by a certified lab must be completed prior to the application of any fertilizer.