Airmax KnockDown Defense | Algae & Aquatic Weed Control

Keep Your Pond Clear with KnockDown Defense 2-In-1 Algae & Weed Control Airmax KnockDown Defense is a fast-acting, EPA-registered liquid herbicide designed to control invasive submerged weeds and nuisance algae. With 42% of the active ingredient Flumioxazin, KnockDown effectively targets duckweed, watermeal, fanwort, hydrilla, and many other aquatic weeds. This versatile formula works in ponds, lakes, canals, bayous, reservoirs, drainage ditches, and marshes. KnockDown breaks down quickly in water, won’t accumulate in sediment, and won’t clog application sprayers. For best results, mix KnockDown Defense with Treatment Booster Plus in a tank sprayer for enhanced coverage and absorption. State Restrictions Airmax Shoreline Defense cannot be shipped to AK, CA, CT, DC, HI, MA, ME, NJ, NY, PR, RI, VT, WA, or Canada 2-in-1 Knockdown Defense – Effective Against These Algae & Weeds String Algae American Pondweed Coontail Curly Leaf Pondweed