The pond is covered now and has fragments and spore/rhizomes. Since most treatments are with a contact herbicide the less you have to contact the better. This is not a normal situation where you have a small % coverage and fish to worry about. Manually remove as much as possible and then treat as needed with one of the copper products or Hydrothol or one of the endothall salts.

That is if its chara. There may be a newer product that I am not aware of however.

Last edited by ewest; 05/19/16 04:31 PM.