I have significant string algae from about now up until the time the
water lily leaves and other aquatic plants develop enough to shade the
pond. In the past, I've just hauled it out by hand. Today I was
talking to someone at a garden center who said she just learned of a
product recently available that you can sprinkle on the pond surface to
eliminate/reduce string algae. Apparently it does not harm other
plants, fish, etc. She could not recall the name of the product. Does
anyone know to what she might have been referring?
Thanks,
Gary