I have treated some areas of American Pondweed around my pond with Weedtrine.
The leaves of the treated plants turned brown within a few hours (untreated areas seem largely unaffected).
Is there a certain time period that I should wait before I try to manually remove dead or dying plants? ie will it get down into the roots if I wait a while?
I don't want to leave all of that stuff to rot and decompose if I don't need to, but "IF" they can be killed at the roots, then I'll wait.
