I live in a wooded area and have tons of moss. I put down lime twice last year, which made it unhappy, but then I overseeded in the fall and now have more moss than ever. A store advised us to put down a moss killer product. We follow the University of Maryland's lawn care guide and, other than fertilizer, our lawn is chemical/pesticide free, and therefore safe for us and our pets, which is important to us. What do you recommend for moss?