Moss and mold can create slippery surfaces and damage your walkways and decks if left too long. It is important to take the time to clean up and remove any moss from your walkways about once a year. This is typically an easy process that only requires a garden hose, a scraper, a brush or scrubber and an environmentally safe solvent like Simple Green. For easier removal go to your local hardware store and buy a brush with a long handle so you don’t have to get down on your hands and knees to do the scrubbing.
Here is a short video that outlines some ideas for removing moss and mold from a walkway. They suggest using a bleach/water mixture but Simple Green will work just as well and isn’t going to be as harsh on the plants around your work area.