Q.Cattails
The article recommends glyphosate – definitely a VERY BAD idea!!

Downtoearthdigs
Answered on August 26, 2017
We offer 'digging up' as an option for removing the cattails as well.
We understand the concerns on the use of glyphosate herbicide and offer as much information as available to the gardeners seeking information.
https://www.gardeningknowhow.com/plant-problems/weeds/glyphosate-information.htm
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