Bayer Advanced Moss Killer 32 oz

Works, but multiple apps required
I use this to remove moss and algae from a northern-exposure stone wall. Generally works, although multiple applications are usually required. As with most hose-end products, they don't give very clear directions on how to mix it for tank sprayer application -- which is how I have to apply it. The only product I've been able to find specifically targeted toward moss.
Reviewer: - 02/15/09