if the FA covers the curly leaf it will choke it off and accelerate its die off...the curlyleaf usually tapers back and dies once the summer continues on

It seems most people say you need to treat the curly leaf as soon as possible in the later winter and early spring. The plant will produce seeds very early in the growth cycle and proliferate quickly. You can treat with chemicals at any time and rake as needed to clear the water way.


Mat Peirce
1.25 acre southeast Iowa pond
LMB, BG, YP, WE, HSB, RES, BCP