Airmax Ultra PondWeed Defense Aquatic Herbicide – Fast-Acting Broad-Spectrum Weed Control

Powerful liquid herbicide for fast control of common pond and lake weeds

Fast-acting liquid aquatic herbicide for pond weeds delivers visible results
Controls submerged, floating, and emergent weeds in ponds and lakes
Provides temporary control of duckweed and watermeal in slow water 
Apply to actively growing aquatic vegetation for the best results
Mixes easily with water for direct application using a tank sprayer

Starting at $49.99

530144 1 Quart is On Back Order Until 07/13/2026

530334 1 Quart w/ Treatment Booster Plus is On Back Order Until 07/13/2026

Cannot Ship to AK, AZ, CA, CT, DC, HI, ME, NJ, NY, PR, RI, VT, WA, Canada

Airmax Ultra PondWeed Defense aquatic herbicide bottles in 1 gallon and quart sizes, labeled for duckweed, pondweed, watermilfoil, hydrilla control. View Product Image

Airmax Ultra PondWeed Defense aquatic herbicide in a quart bottle, designed to control duckweed, pondweeds, watermilfoil, hydrilla, and elodea. View Product Image

Quart bottle of Airmax Ultra PondWeed Defense aquatic herbicide shown with Treatment Booster Plus surfactant measuring bottle for enhanced weed control. View Product Image

One gallon jug of Airmax Ultra PondWeed Defense aquatic herbicide with built-in handle, labeled for duckweed, pondweed, watermilfoil, hydrilla control. View Product Image

Close-up of Airmax Ultra PondWeed Defense label showing aquatic weeds controlled, active ingredients, safety caution, and treatment coverage details. View Product Image

Man wearing safety gloves and goggles pours liquid aquatic herbicide into a sprayer tank, demonstrating easy mixing and accurate application outdoors. View Product Image

Applicator sprays liquid aquatic herbicide directly onto floating pond weeds from the shoreline, targeting duckweed and surface vegetation for control. View Product Image

Before and after comparison showing dense American pondweed covering the water surface before treatment and clear, open pond water after aquatic weed control application. View Product Image

How to apply graphic showing three steps for aquatic weed control: treat pond weeds with sprayer, wait for results, then remove dead vegetation. View Product Image

Graphic showing aquatic weeds controlled by Ultra PondWeed Defense, including American pondweed, curly leaf pondweed, coontail, southern naiad, and more. View Product Image

Clear, calm pond surrounded by green trees and shoreline vegetation, illustrating effective aquatic weed control results and a clean, weed-free water surface. View Product Image

Fast-acting liquid aquatic herbicide for pond weeds delivers visible results
Controls submerged, floating, and emergent weeds in ponds and lakes
Provides temporary control of duckweed and watermeal in slow water 
Apply to actively growing aquatic vegetation for the best results
Mixes easily with water for direct application using a tank sprayer

Starting at $49.99

530144 1 Quart is On Back Order Until 07/13/2026

530334 1 Quart w/ Treatment Booster Plus is On Back Order Until 07/13/2026

Cannot Ship to AK, AZ, CA, CT, DC, HI, ME, NJ, NY, PR, RI, VT, WA, Canada

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