If your home is made of brick or you have a stone foundation like I do, you have probably noticed small patches of lichens and mold growing in the areas that have the most moisture. These little critters will begin to break down your brick and mortar if not taken care of. Wearing a respirator and goggles, attach them with a stiff bristled plastic brush. Make a solution of 1 part bleach and 6 parts water and put in a spray bottle. Spray and scrub all of the areas affected to kill off the spores to prevent a future problem.