I am a new member to the website and it appears there is much expertise here. We have a pond approx. 3/4 to 1 acre. About 2 years ago the American pondweed appeared and is taking over. The Missouri Conservation Dept told us to spray with a product with glysophate last year but to no avail. We are looking into Aquathol or Super Aquathol K granuals. Does anyone have any information on what we should use. Thank you
