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Glyphosate 5.4 Aquatic Herbicide

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Glyphosate 5.4 Herbicide by Alligare LLC is a systemic post-emergent herbicide providing broad spectrum weed control. Glyphosate 53.8% is a non-selective herbicide that is used to kill weeds and grasses in aquatic areas, cracks of parking lots, driveways, and fence rows. This product works systemically through the foliage down to the root killing off the plant within days of application.

Target Pests

Glyphosate 5.4 Herbicide is for the control of annual perennial and aquatic weeds such as beggarwed bermudagrass dogfennel johnsongrass milkweed nightshade pigweed ragweed smutgrass sunflower thistle velvetleaf and many other listed grasses weeds aquatic plants and unwanted vegetation.

For Use In

Glyphosate 5.4 Herbicide is for use in any area of vegetation including aquatic sites such as lakes ponds rivers streams canals seeps and rice levees. Care should be taken to ensure that non-target vegetation is protected from drift.


For general application mix Glyphosate 5.4 at a rate of 2 ounces per gallon of water plus a non-ionic surfactant to control annual, perennial, and woody plants. For application in aquatic sites refer to label for more specific details on how to treat these areas.

Coverage Area

Each 2.5 gallon of Glyphosate 5.4 Herbicide will treat approximately 3.5 acres.

Time to Kill

Glyphosate 5.4 Herbicide takes approximately 2 to 4 days to eliminate unwanted vegetation.

Country of Manufacture

United States

Mix Rate

For general application mix Glyphosate 5.4 at a rate of 2 ounces per gallon of water.

Active Ingredient

Aquatic Glyphosate 53.8%

Glyphosate 5.4 Aquatic Herbicide

Product Q & A

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Browse 24 questions Browse 24 questions and 23 answers
Why is this almost twice as expensive as the brand name (Rodeo)? Currently 2.5 gal of this is $125 compared to $73 Rodeo for the same amount. Roundup custom 2.5 gal is also much less expensive than this one. I thought generics were supposed to be cheaper!
A shopper on Mar 7, 2018
Will this kill Dallas grass?
A shopper on Feb 9, 2018
BEST ANSWER: Yes, the Glyphosate is what we call a non-selective herbicide and it will kill anything it is sprayed onto.
What are the effects on water run off to our estuaries?
A shopper on Aug 28, 2018
BEST ANSWER: According to the label it does state:

The pesticide must only be applied when the potential for drift to adjacent sensitive areas
(e.g. residential areas, bodies of water, known habitat for threatened or endangered
species, non-target crops) is minimal (e.g. when wind is blowing away from the sensitive

Read the label for specific info on effects etc.
Is it a good product to kill hydrilla around boats in a marina on a large lake?
Carol L on Aug 27, 2018
BEST ANSWER: Yes it is. Aside from this product, you can take a look at some other recommendations on our hydrilla page.

Can I get this from a store around me glyphosate 5.4?
jan m on Aug 27, 2018
BEST ANSWER: We have several brick and mortar stores around the southern United States (Texas, Georgia, Florida) where you can find this product or you can order it online with us. If you want a professional high-quality glyphosate, I'd recommend ordering online with us.
Will this kill water shield and if so what is application rate?
Destinee on Aug 21, 2018
BEST ANSWER: Sonar Genesis would be a better control product for watershield. Glyphosate 5.4 does not have water meal on the label, but should work. You will need to refer to the label for exact rates, but it is about 2 ounces per gallon of water to cover 1,000 square feet.
Will it hurt trees?
A shopper on Aug 9, 2018
BEST ANSWER: It potentially can that's why it's best to always spray with care around trees. Mature trees, which have brown bark will not absorb glyphosate, but avoid any wounded areas on trunks as entry direct to the cambium can result in damage. Any green area can absorb the product and potentially cause damage, so care should be taken around low hanging branches that leaves are not sprayed.
Will kill water hyicyath?
Willi on Aug 4, 2018
BEST ANSWER: Yes it certainly can.
will this product kill cattails?
A shopper on Jul 31, 2018
BEST ANSWER: Yes, you certainly can with this product.
What if a pet were to get in it?
A shopper on Jul 28, 2018
BEST ANSWER: Pets should not have access to the bottle of the concentrate. When you apply Glyphosate to your lawn or weeds, you will want to keep them off the area until it completely dries.
Hi need to kill weeds coming up thru gravel once and for all?
Meatworkinyard on Jul 26, 2018
BEST ANSWER: This product should be good for it or one of our bare ground control products.
Will this kill the fish ?
A shopper on Jul 4, 2018
BEST ANSWER: No, Glyphosate 5.4 Aquatic Herbicide will not kill fish when used according to the label.
We are confused on mixing this product because it also comes with a bottle of alligare glyphosate 5.4 and a bottle of alligare 90. They get mixed together?
A shopper on Jun 10, 2018
BEST ANSWER: Yes, you would mix the 2 together, the Glyphosate, surfactant and then water.

Average rate is 2 ounces of Glyphosate and 1 ounce surfactant in a gallon of water.
Will this kill allegator weed?
A shopper on Jun 5, 2018
BEST ANSWER: Yes, the Glyphosate 5.4 Aquatic Herbicide will kill the allegatorweed at a rate of 2 oz per gallon of water in a handheld sprayer.
Will this kill kudzu?
Johnk on May 5, 2018
BEST ANSWER: Kudzu – For control, apply 6 pints of this product per acre as a broadcast spray or as a 1-½
percent solution with hand-held equipment. Repeat applications will be required to maintain
What will kill bougainvillea?
Bruce P on May 4, 2018
BEST ANSWER: Yes, you will need to be patient and get really good coverage but it will kill the Bougainvillea.
should I use a surfactant with glyphosate 5.4 to kill grass growing above water line
old dad on Jul 10, 2017
BEST ANSWER: Yes, it is always recommend that you use a surfactant and I would also recommend a spray pattern indicator.

Will this kill horsetail?
Ann on May 14, 2017
BEST ANSWER: Herbicide control of horsetail, you will want to look for the active ingredient halosulfuron-methyl (Sedgehammer) can be effective, and Sedgehammer is labeled to control field horsetail in landscape areas. It should be applied before the sterile stems are six inches tall for maximum control.
will this kill nutgrass
Flipster on May 12, 2017
BEST ANSWER: Yes, This product is label to control purple,yellow Nutsedge. The mixture can be made at a rate of 1 fl oz per 1 gal of water. A non-ionic surfactant is to be added to the mixture of Glyphosate and water for better results.
Will it kill grass that's under the water also?
Rusty on Apr 19, 2017
BEST ANSWER: This product does not control plants which are completely submerged or have a majority of
their foliage under water.
How would I mix this to kill bird of paradise (white flower)
Braz on Nov 16, 2016
BEST ANSWER: Broadcast Application � Use 1 _ pints of this product per acre plus 2 or more quarts of a
nonionic surfactant per 100 gallons of spray solution if weeds are less than 6 inches tall. If
weeds are greater than 6 inches tall, use 2 _ pints of this product per acre plus 2 or more
quarts of an approved nonionic surfactant per 100 gallons of spray solution.

Use from 1 to 2 ounces per gallon of water.

Is this effective for bamboo?
Moni on Sep 4, 2016
BEST ANSWER: Yes, the Glyphosate will work on Bamboo, I would mix it with some type of liquid fertilizer, Miracle grow, spray them together, get good coverage. Do not chop the Bamboo down till it just simple pulls out the ground.
Will this kill Japanese knotweed? I've tried everything even round up concentrate they still grow.
Pops on Jul 16, 2016
BEST ANSWER: Herbicides with an active ingredient of glyphosate (Rodeo, Aquamaster, Gly Star, Round-up among
others), triclopyr (Garlon 3a and many �shrub-killers�), 2,4-D, picloram (Tordon) and Imazapyr
(Arsenal) have shown to be variably effective in controlling knotweed either separately or in combinations.
Each offers benefits and potential risks. Depends where you applying this and the potential to kill other plants.
How do I kill scrub brush for good!!! Already tried roundup
Help!! on Jul 16, 2016
BEST ANSWER: https://www.solutionsstores.com/triclopyr-4-brush-killer-garlon-4

I would recommend using Triclopyr to control Scrub brush in your area.

Customer Reviews

5.0 / 5.0
3 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Easy to Use
4.5 / 5
5.0 / 5
5.0 / 5
Safe to Use
5.0 / 5
Would you Recommend?
Yes (3)
Easy to Use
4 / 5
5 / 5
5 / 5
Safe to Use
5 / 5
Would you Recommend?
Great product
Works great. You won’t notice it working until about 4-5 days. Mixing directions are not easy to find or understand, But it is basically 2 1/2 shot glasses for 2 gallons of water. Also need the surfactant if spraying on weeds in the water.
November 24, 2018
2 months ago
Would you Recommend?
Great for Lilypads
It worked to kill the Lilly pads in our channel on the lake!
September 7, 2018
3 months ago
Easy to Use
5 / 5
5 / 5
5 / 5
Safe to Use
5 / 5
Would you Recommend?
June 27, 2018
6 months ago

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