KnockDown Defense quickly controls tough invasive weeds such as duckweed, watermeal, fanwort, hydrilla, and algae. KnockDown is an EPA-registered liquid herbicide that contains 42% of the active ingredient Flumioxazin. It is ideal for controlling algae and submerged aquatic weeds in ponds and lakes. Effective in slow-moving or quiescent waters such as bayous, canals, drainage ditches, reservoirs, and marshes. KnockDown is versatile and breaks down quickly in water without accumulating in the sediment or clogging application sprayers. Mix KnockDown Defense, Treatment Booster Plus, and water in a tank sprayer for the best results. Reactive treatments such as algaecides, herbicides, and mechanical tools can help control unwanted weeds or algae and are a vital step in the Airmax Ecosystem, a simple 3 step approach to pond and lake management. The Airmax Ecosystem is the industry-leading method to achieve a clean, transparent, thriving aquatic ecosystem

• Algae and Aquatic Weed Control
• Tough on Invasive Weeds and Algae
• Fast-Acting Combination Treatment
• Effective in Slow Moving or Quiescent Waters
• Liquid Formulation for Easy Measuring, Mixing and Application
• Each Bottle Treats up to 1 Acre (43,560 sq ft)

KnockDown Defense has no temperature restriction. Apply when weeds are actively growing. In areas with dense weed vegetation, only treat 1/2 of the waterbody at one time and wait 10-14 days before treating the remaining area. Refrain from re-treating the same section of water within 28 days of application.