Originally Posted By: jwetovick
Looking into using Rodeo. It appears they suggest spraying when the cattails are mature. I would assume this would be July/August for us Nebraska folks. I was hoping not to have to wait that long as I'd like to try to spray half now and half fall to try and eliminate a big decrease in oxygen levels from the decaying. Anyone had good luck last spring early summer? From what I can tell on the label I'm going to try the 1.5% mixture unless someone has other positive suggestions? Thanks

I've used Rodeo on both mature cattails and freshly emerged and both have been successful. It's best to wait until you're sure the new ones are pretty much all sprouted to reduce the need for repeated spraying.