Best Pond Weed Killers in 2026

Use with most pesticides to improve results

CERTIFIED FOR ORGANIC USE — Completely eliminates and desiccates weeds and grasses without using toxic chemicals. Made straight from corn grown in the USA. OMRI listed weed killer and certified for organic use.

KILLS WEEDS FAST — Eliminate any type of weed in just a matter of hours. Expect full desiccation in less than 24 hours. Green Gobbler contains 20% acetic acid. Use on crabgrass, dandelions, clover weeds, white clover, moss, etc.

POWERFUL FORMULA — NO cancer-causing chemicals. Glyphosate-free. 20% formula is four times stronger than traditional table vinegar. Made strictly from ethanol distilled from corn grain.

Razor-Sharp Blades Remove Aquatic Vegetation: Quickly shear through your pond weeds with the innovative V-shaped blades. Cuts a 30-inch-wide path, making quick work of submerged weeds and algae.

Easy to Use: Weighing just six pounds, the Weed Razer is light enough to be thrown far and often but heavy enough to sink to the bottom and cut pond weeds at their base. Includes 5-foot long handle.

Keeps Your Shoreline and Dock Accessible: Enjoy your lakefront property with unimpeded access to outdoor water sports, including swimming, boating, fishing, duck hunting or simply enjoying the view.

Applying Ortho GroundClear Weed & Grass Killer2 quickly controls weeds like dandelions, chickweed, spotted spurge, and moss, plus unwanted grasses from patios, walkways, landscape beds, and gardens

This weed and grass killer acts on contact, with results starting to show in just 15 minutes and some weeds turning brown in only 2 hours

Control weeds cluttering up your gardens, landscape beds, walkways, driveways, sidewalks, and under trees

Diquat Dibromide 37.3%

Diquat Herbicide is for weed/algae control in and around ponds, lakes, commercial greenhouses and nurseries, landscapes, industrial land, recreational land, residential lawns, and public areas.

Diquat should be mixed at a rate of 1 gallon per surface acre (4' depth) or mixed at 32ounces per 100 gallons when spraying as a commercial weed killer.

Active Ingredient: Diuron 80%

For control of many annual and perennial grasses and herbaceous weeds

5lb bag

Diuron 80.0%

Diuron 80 DF Herbicide is designed as a dispersible granule for control of weeds in specific crops and for non-selective weed control on non-crop sites. Diuron can be used as a pre-emergent as well as a post-emergent.

3-4 lb per acre on selected crops - See Label for specific crops listed. For non-crop weed control, use 5-10 lb per acre.

Mojave 70EG herbicide gives you total bare ground control of 150 species of annual and perennial grasses, broadleaf weeds and vines with just 1 application.

Because Mojave provides such outstanding residual control, it keeps new weeds from emerging all season long. You won't need to worry about re-treating after the initial application. Plus, when you use Mojave according to label directions, it won't harm nearby vegetation - even sensitive crops.

The superior formulation of Mojave makes it easy for you to mix and apply. It's also particularly compatible with drift-control agents. Plus, it disperses easily in water and produces a stable, long-lasting suspension you can apply with either conventional sprayers or injection sprayers without fear of clogging nozzles or injection units.

2,4-D Amine 46.8%

Alligare 2 4-D herbicide can be used in pastures, forests, lawns, industrial sites, and aquatic sites.

Mix 1-2 ounces of 2 4-D Amine per gallon of water.

Residential areas, Parks and Recreational Areas

Easy to use

Non-Selective Herbicide

Diquat formula kills surface and submerged weeds that are copper resistant

Effective in controlling hard to kill weeds like duckweed

Consists of 37.3% diquat dibromide

Application and use flexibility for weed and brush control by land or water

Offers the flexibility to choose the right surfactant, tank mix or custom herbicide blend for the job at hand

Non-selective and highly effective on more than 190 species of emerged weeds, brush and vines

✔️ PET & KID SAFE HERBICIDE - Eco Garden Pro Weed Killer is designed with you and your family in mind! All of our ingredients are carefully selected to be SAFE FOR: PETS, CHILDREN, BEES, FISH, AND ANY LIVESTOCK!

✔️ ORGANIC WEED KILLER - Formulated to KILL WEEDS AND GRASS FAST. Our proprietary formula will deliver IMMEDIATE RESULTS WITHIN 24 HOURS! Perfect for all residential, commercial, industrial, and agricultural use - including: driveways, sidewalks, concrete, mulch beds, pavement, flowers beds, parking lots, and farm lands.

✔️ WORKS within 24 HOURS POWERFUL PROPRIETARY FORMULATION - Our READY TO USE (RTU) formula contains natural white vinegar, organic rock salt, biodegradable plant activators, and fermentation derived co-factors, all designed to eliminate weeds and grass effectively and quickly.

Controls Aquatic Weeds. Cannot be shipped to: AK, AZ, CA, CT, DC, HI, ME, NJ, NY, PR, RI, VT, WA and Canada

Contact Herbicide

Controls Submerged Pond Weeds

BENEFITS: Weedtrine D Aquatic Herbicide controls submersed, floating and emergent weeds including duckweed

USE: Ideal for a broad range of weeds commonly found in ponds, pools, fountains and other water sources

COMPATIBILITY: Water use is restricted for irrigation, drinking (animal or human) and swimming

3X SUPER CONCENTRATE BLUE MARKER: PetraTools Sprayer’s Blue is a highly concentrated water soluble spray colorant for fertilizers, herbicides, and weed killer products. This is a super concentrate that requires 3X’s less marker per gallon compared to other lawn dyes so that you get 3X’s the value for your money. With its extremely visible blue color, you can quickly locate the liquid products applied on your lawn and clogged nozzles or blockages in your sprayer. Saves you time spraying!

Quickly Fades: No need to worry about seeing your yard blue for a long time! Our blue turf mark will fade in 24-48 hours. It naturally disappears with rainfall and exposure to sunlight and doesn’t stain your shoes, clothes, or pets. Compatible with tenacity herbicide, surfactant for herbicide, mesotrione, & all herbicides.

The Perfect Spray Pattern Dye: Sprayer’s Blue is perfectly designed for use with sprayers. As a dependable and trusted sprayer manufacturer, PetraTools is developing the lawn solutions you need for the sprayers that get the job done right. 100% Safe to Use, Sprayer’s Blue is formulated with non-irritating ingredients - our spray marker is 100% safe to use around people, pets, and the environment.

This selective weed killer kills or controls many Broadleaf Weeds and plants susceptible to 2, 4-D.

Works on Dandelion, Arrowhead, Buckhorn, Aster, Goatsbeard and more. See label for full list.

Pairs great with Hi-Yield Spreader Sticker (31063) for increased effectiveness.

✅ All Natural and Safe Product- Safe for your family, safe for your pets.

✅ No Harmful Herbicides, Derived from Vinegar

✅ Effective on Most Broadleaf Weeds and Grasses- Use around lawns, gardens, flowerbeds, landscaping, trees, rock beds, mulched areas, and more. NOTE: This will kill grass so do not apply directly to lawns unless trying to kill grass.

BENEFITS: Selectively controls water milfoil, waterstargrass, bladderwort, water lily, coontail, watershield, water chestnut, spatterdock and other aquatic plants

USE: Broadcast evenly using spreader or blower; For small spot treatments, apply uniformly using spreader or hand scoop

COMPATIBILITY: Water use is restricted for non-turf irrigation and drinking (human consumption)

QUART JUG

NOT FOR SALE TO: AK, CA, HI, NY, WA

Active Ingredient: Diquat Dibromide 37.3%

Diquat Dibromide 37.3%

Diquat Herbicide is for weed/algae control in and around ponds, lakes, commercial greenhouses and nurseries, landscapes, industrial land, recreational land, residential lawns, and public areas.

Diquat should be mixed at a rate of 1 gallon per surface acre (4' depth) or mixed at 32ounces per 100 gallons when spraying as a commercial weed killer.

OMRI listed, ideal for organic gardening, ready to use

When applied to weeds, it strips off the plant's waxy cuticle, and dehydrates the weed, killing it down to the root

Fast Acting patented formula works faster than the other leading, killing weeds, results are seen within hours

Long-Term Pond Weed Control: Provides an easy-to-use, all-season treatment for the entire water body. The systemic fluridone herbicide controls submerged and floating pond weeds slowly by reducing their chlorophyll, starving them of nutrients without a rapid oxygen depletion or a fish kill.

Combination Treatment Effective on Floating & Submerged Aquatic Weeds: Controls duck weed, water lilies, coontail, fanwort, watermilfoil, American pondweed, bladderwort, curly leaf pondweed, hydrilla, elodea, lily pads, sago pondweed, spatterdock, southern naiad, and other common species.

Easy Application: Simply mix treatment with pond water and pour in several spots around the pond's edge. Treat once and then enjoy your pond all season, without the hassle of continual treatments. A great solution for busy pond owners as well as for HOAs, commercial facilities, and golf courses with ponds. No sprayer or granular spreader required.

Active Ingredient: Diquat - Non Toxic to Fish. Manages weed problems in aquatic, grounds maintenance and landscaping areas. Great for Golf Course Landscape Management, Amusement Parks and other Recreational Facilities

Can be used along the edges and non-flooded areas of ponds, lakes, drainage ditches and canals

Once applied, it diffuses rapidly through the cuticle and then throughout the leaf tissue of the weed. The first effects can be seen within an hour

BOOSTS HERBICIDES - Adios surfactant helps stick your solution to weeds for better performance! One 16oz bottle of surfactant enhances 50 gallons of herbicide, ensuring you get the job done the first time.

TRUE WETTING AGENT – Get maximum performance with fungicides, pesticides, insecticides and defoliars. Our specialized Boost Surfactant binds to plants, by allowing solution to be directly absorbed, while also reducing surface tension of water and ensuring solution sticks on the plant.

SAVES MONEY - Adios Spray Boost reduces the amount of product needed AND reduces repeat applications, saving you both time and money! A smart and cost effective way to get the most of our of your existing chemicals.

[ PLEASE READ BEFORE MAKING A PURCHASE ] These are handmade and have a specific use. Our return policy states “Can only be returned if not used”.

[ HOW IT WORKS ] This Non-Chemical, eco-friendly herbicide-alternative uses a simple principle: limit the Sunlight from getting to the lake bottom and weeds will not grow. Place the Lake Bottom Blanket over an area that you want to control weeds and 4 weeks later they are dead. Unlike chemicals, the LBB only affects weeds that it is physically shading/covering, causing no harm to fish, animals or other aquatic life by allowing them to pass under the LBB.

[ WHATS INCLUDED IN THE BOX ] (1) Our Patented Lake Bottom Blanket with weight channels (un-weighted) (2) Installation ropes, Rebar End Caps and Warning Buoy (3) Installation DVD and written instructions.

Non-selective and replant 5-7 day after application. Effects are visible in only a few days.

It's ideal for eliminating specific weeds that are close to desired flowers, shrubs, brushes and trees.

Kills most forms of plant growth without damage to the soil.

Vessel 3-Way, Generic Trimec 992 Broadleaf Herbicide provides rapid control of clover, dandelion, knotweed, henbit, chickweed, plantain, spurge, and many other listed broadleaf weeds.

THE PRO CHOICE FOR SEASON-LONG WEED CONTROL: Semera 51.0% WDG contains 51% flumioxazin; the same active ingredient as SureGuard, the herbicide professionals trust for season-long weed control.

AQUATIC WEED CONTROL: Semera 51.0% WDG is a fast-acting contact herbicide that controls selected submersed, emergent and floating aquatic weeds. Controls Duckweed, Alligator Weed, Coontail, Frog's-bit, Hydrilla, Pondweed, Water Fern, Water Lettuce, Watermilfoil

VERSATILE HERBICIDE FOR MANY USES: Hold down grassy and broadleaf weeds with this versatile solution for landscape, golf course, and nursery settings including aquatic, bare ground, woody landscape ornamentals, container- or field-grown trees, and crack and crevice areas. Semera 51.0% WDG is also an excellent option for Poa control in dormant Bermudagrass. Refer to the product label for complete use and application information.

32 oz Bottle

Not for Sale to: AK, AL, AZ, CA, DC, HI, IL, KS, PR CT, ME, VT

ACTIVE INGREDIENTS: 2,4-Dichlorophenoxyacetic acid - 34.2 % Triclopyr - 15.2 %