Alligare Triclopyr 3 can be used in fish ponds when applied per the product label instructions. The label advises DO NOT treat more than one third to one half of the water area in a single operation and wait at least 10 to 14 days between treatments. Begin treatment along the shore and proceed outwards in bands to allow fish to move into untreated areas.
Consult with the State agency for fish and game before applying to public water to determine if a permit is needed.