Algae Defense is fast-acting and works on a broad spectrum of algae. Begin applications early in the spring when water and temperature reaches 60° F and above. Early applications will reduce the amount of Algae Defense needed and reduce the amount of excess nutrients caused by dead algae. Unless steps are taken to reduce the overall nutrients in your pond, multiple applications may be needed for a full season of control.
Algae Defense successfully controls diverse algal types including branched, filamentous, and planktonic species. To obtain optimal control, apply Algae Defense in accordance with label directions at the first appearance of algae bloom. Begin applications early in the spring when water and temperature reaches 60° F and above. Early applications will reduce the amount of Algae Defense needed and reduce the amount of excess nutrients caused by dead algae. Algae in the water column or on the weed surfaces can reduce the effectiveness of aquatic herbicides against other weeds. Mix Algae Defense with PondWeed Defense to improve aquatic weed control.
Application: If your pond is not equipped with an aeration system, treat your pond in thirds, waiting 10 - 12 days between treatments to insure safe oxygen levels. Mix 1 gallon Algae Defense with at least 2 gallons of tap water and spray directly on the pond's surface where weeds are present. 1 gallon treats 10,000 square feet.
Follow label instructions carefully!
RESTRICTIONS: Pond Weed Defense may be toxic to Trout if carbonate hardness of treated water is less than 50 ppm. Most surface waters exceed this limit and pose no threat. If in doubt, use a water hardness test kit. Do not use if you have Koi or Goldfish. No other water use restrictions.
PondWeed Defense® Aquatic Herbicide is prohibited for sale, use or distribution in CA, CT, ME, NJ, NY & WA.