

Hero image 0 of Airmax Ultra PondWeed Defense, 32 ounce, 0 of 5
Airmax Ultra PondWeed Defense, 32 ounce
Key item features
- Broad Spectrum: Controls submerged, floating, and emergent weeds like watermilfoil, hydrilla, naiad, and coontail, with temporary control for duckweed and watermeal.
- Fast-Acting Herbicide: Easy to apply with a tank sprayer, showing results within 7-10 days as weeds begin to brown and die.
- Aquatic Safe: When used as directed, it will not harm game fish, koi, goldfish, wildlife, birds, livestock, or pets.
- Effective Coverage: A 32 fl oz bottle treats up to 5,000 sq ft, targeting actively growing nuisance or invasive weeds.
- Optimized Application: For best results, use with Airmax Treatment Booster Plus on actively growing plants, with early-season emergent treatments potentially needing additional applications.
- Weed Removal: After treatment, dead weeds should be removed to prevent them from adding to the muck and sludge layer of the waterbody.
Generated by AI
Specs
- Herbicide typeWeed Killer
- BrandAirmax Eco Systems
- FormLiquid
- Size1 Quart
- Plant categoryAquatic Plants
- Plant namePondweed
Current price is USD$49.99
Price when purchased online
- Free shipping
Free 30-day returns
How do you want your item?
Columbus, 43215
Arrives between Feb 21 - Feb 23
|Sold and shipped by AZPonds & Supplies Inc.
4 stars out of 5, based on 5 seller reviews(4.0)5 seller reviews
Free 30-day returns
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About this item
Product details
Looking for fast-acting broad-spectrum pond weed control? Airmax Ultra Pondweed Defense works on pond weeds, including submerged, floating, and emergent or shore weeds. This pond herbicide may temporarily control and get rid of duckweed and watermeal in slow-moving water. Works on various weeds in ponds and lakes, including submerged, floating, and shoreline weeds such: American Pondweed, Bladderwort, Clasping Leaf Pondweed, Coontail, Curly Leaf Pondweed, Eurasian Watermilfoil, Hydrilla/Elodea, Lily Pads, Sago Pondweed, Southern Naiad, and Water Shield. Not an algaecide and will not treat or kill green water algae, algae mats that resemble moss, or string algae. Not recommended for use on your lawn, turf, bermuda or crab grass / crabgrass, or brush. Formulated to remedy aquatic weed growth and will not target any tree, root, stump, seaweed, or cattail patch. Use pond weed remover solution with Airmax Treatment Booster Plus all season long on actively growing plants for best results. Early-season emergent treatments may require additional applications. Easy to apply using a tank sprayer. Concentrated herbicide will be mixed, travel through the hose and out sprayer applicator nozzle, making direct contact with weeds. 32 fl oz treats up to 5,000 sq ft. Active ingredient / chemical is diquat. Treated vegetation will begin to brown and die within 7-10 days. Remove dead weeds using a cutter, rake, or other tool. Removal will prevent decaying plants from adding to the total muck and sludge layer of your waterbody. When used as directed, chemicals will not harm fish, wildlife, birds, livestock, pets, or dogs. Can be used in residential, farm, commercial, and industrial outdoor ponds and lakes. See Airmax for all your pond supplies, including natural water treatments, beneficial bacteria products, pond dye, aeration, and fountains. Learn more about the Airmax Ecosystem, a simple 3 step approach to pond and lake management, creating a clean, clear, and thriving pond or lake.
- Broad Spectrum Pondweed Control -- Herbicide works on submerged, floating, and emergent weeds. Controls watermilfoil, hydrilla, naiad, coontail, American pondweed, and other common aquatic weeds.
- Controls Submerged & Floating Pond Weeds -- Apply good coverage to nuisance or invasive weeds that are actively growing. Herbicide may temporarily control duckweed and watermeal in slow-moving water.
- Fast-Acting Contact Aquatic Herbicide -- Easy to apply using a tank sprayer. For best results, use with surfactant Airmax Treatment Booster Plus and control pond and lake weeds all season.
- Quick Results -- Weeds will begin to brown and die within 7-10 days. Remove dead weeds. Early-season emergent treatments may require additional applications. 32 fl oz treats up to 5,000 sq ft.
- Will Not Harm Aquatic Life -- When used as directed, will not harm game fish such as bass, trout, bluegill, carp, bass, catfish, walleye, crappie, pike, salmon, or perch. Safe for koi and goldfish.
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Warranty
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Warnings
Compare with similar items
| Product | Viewing this itemAirmax Ultra PondWeed Defense, 32 ounce ![]() $49.99 current price $49.9964.8 out of 5 Stars. 6 reviews | AquaSweep Herbicide - Landscape and Aquatic Herbicide - 32 fl oz Bottle by NuFarm ![]() $33.99 current price $33.99 | Crystal Plex 1 Gal. Liquid 1-Acre Coverage Area Algae Control Step 3 Gallon ![]() Now $39.99 current price Now $39.99, Was $48.99$48.99 34.7 out of 5 Stars. 3 reviews |
|---|
| Herbicide type | Weed KillerAirmax Ultra PondWeed Defense, 32 ounce | Weed KillerAquaSweep Herbicide - Landscape and Aquatic Herbicide - 32 fl oz Bottle by NuFarm | Weed KillerCrystal Plex 1 Gal. Liquid 1-Acre Coverage Area Algae Control Step 3 Gallon |
|---|---|---|---|
| Form | LiquidAirmax Ultra PondWeed Defense, 32 ounce | LiquidAquaSweep Herbicide - Landscape and Aquatic Herbicide - 32 fl oz Bottle by NuFarm | LiquidCrystal Plex 1 Gal. Liquid 1-Acre Coverage Area Algae Control Step 3 Gallon |
| Size | 1 QuartAirmax Ultra PondWeed Defense, 32 ounce | 32 fl oz BottleAquaSweep Herbicide - Landscape and Aquatic Herbicide - 32 fl oz Bottle by NuFarm | 8Crystal Plex 1 Gal. Liquid 1-Acre Coverage Area Algae Control Step 3 Gallon |
| Plant category | Aquatic PlantsAirmax Ultra PondWeed Defense, 32 ounce | Aquatic PlantsAquaSweep Herbicide - Landscape and Aquatic Herbicide - 32 fl oz Bottle by NuFarm | GrassesCrystal Plex 1 Gal. Liquid 1-Acre Coverage Area Algae Control Step 3 Gallon |
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Customer ratings & reviews
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Showing 1-3 of 3 reviews
Oct 7, 2025
Clifford
5 out of 5 stars review
Verified Purchase
directions made it overly complicated. just add 1.5 table spoons per gal
Helpful?591AO1II4I35507468636
Oct 11, 2023
BAM
5 out of 5 stars review
Pond weed killer
I have several pumps in 1/4 acre pond. I only used 3 Oz and mixed it in a 2 gallon sprayer %26 sprayer half of my pond. 3 weeks later my saga weeds were gone. I also have a aerator system. This worked great but start with a small amount!
Helpful?591AO1II4I35507468636
Jul 21, 2021
KenW
4 out of 5 stars review
Verified Purchase
Airmax Ultra Pond Weed Defense
This stuff sounds like it might work on my pond.. Don't have an aerator system, so will see when I get it added to the water.
Helpful?591AO1II4I35507468636



