Originally Posted by smokey
...The label says that the weed must stay in contact for 60-90 days. Sorry but I just can't afford to send that kind of money again. I am at a loss. Hope this helps you.
Correct. I use it in my hatchery pond during the summer when there's less potential rain to dilute it. Using it during spring rains when water is flowing makes it less effective. Fluridone works great if the water table is steady.

AL