Nishikoi Goodbye Blanketweed - 32 Sachets

I have been using the product for over a year, and I can tell you it does work. It keeps the blanket weed under control for most of the year, the only time it needs a little help is in the spring, before the lily covers the surface to cut back the sunlight, but even then, the blanket weed is easily brushed off the sides of the pond, for removal.