When killing cattails, it's best to spray them in the Fall. Don't forget to remove the catkins before they blow apart and scatter new seeds all over your pond. Cut them off, shove them in a plastic bag and put them in the trash. I collect them in a 5 gal bucket as I cut them off the plants, then dump that bucket into a heavy duty garbage bag.
Catplex is just a 53% glyphosate, so any other pond rated glyphosate will do just as well.
I use CattPlex with a surfacant, safe for fish and keeps cat tails out of my ponds fine. Have used it for years and have been very pleased with it. Cat tails go yellow a few days after spraying and die clear into root system.
Do you generally rake out the dead plants after applying glyphosate? For my pond situation, raking would be a lot of work for me. Ugh.
CattPlex is almost double the price (on Amazon, no less) of Shoreline Defense that I mentioned. I haven't checked the label details, but are some glyphosate products better than others?
