The idea of herbicides or chemical solutions is a last resort. I'd never plant a cattail on any pond in any circumstance, with the exception of small forms like typha laxmanii.
The idea of native invasive plants that are easy to throw in, usually means the destruction of a pond, having wrestled cat tails like scirpus lacustris and typha latifolia in the past well, theres other things I'd rather do.
Theres lots of other plants that can be put in and around a pool which don't become a long term problem...
Regards, Andy
