How can I get rid of cattails in my pond?
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You can pull them by hand or cut them just below the water surface.
When using that method, make cut in mid to late summer (July or later), cutting them in May will stimulate their growth because they are already using most of their energy for spring growth. Repeat the cutting two or three times, and each year you should see fewer cattails returning. If you want to remove them completely, remove the entire root.
In some places it is illegal, so I would call my county extension agent for advice.