Pond Logic PondWeed Defense is a rapid-acting contact aquatic herbicide designed to work on many species of aquatic vegetation. Treated aquatic weeds will generally drop below the surface in as little as 4-7 days.

• Pondweed Defense
• Size: 1 gal
• Excellent for use on duck weed, coontail, elodea/hydrilla, milfoil, and pondweed
• Always read the product label
• Pondweed Defense may be toxic to trout if carbonate hardness of treated water is less than 50ppm.
• Do not use in ponds with koi or goldfish.