CB1 :

Ted gave you the answer. I agree. One quart will kill a lot of cattails and willows and other plants. I estimate an acre. I did not use a commercial suff. but sprayed a mix of soap + water + habitat on the cattails in a mid-range application and was very cautious about what was sprayed. It worked well but probably would work better with suff. Also I was treating a small area of cattails about 100 squ. ft.( 50 x 2 ) along the dam and a few small patches here and there around the pond. Also some willows which it also worked well on. It worked and just in time before they spread further. As stated earlier be careful as it will kill a lot of plants ,grasses and trees. ewest