Rodeo Herbicide - 2.5 Gallon


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4.7 Rating: 4.7

25 Reviews | 41 Q&A 


  Size/Description Price/Ea. Qty  
Rodeo Herbicide - 2.5 Gallon jug(s) (2.5 gallons)

Buy 1: $89.64 each

Buy 2 or more: $86.85 each

Total Price: $0.00

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Rodeo Herbicide - 2.5 Gallon

Rodeo Herbicide is a very popular glyphosphate herbicide for the control of aquatic weeds and plants. Rodeo Herbicide is effective on nearly all emergent plants like Cattails, Grasses, Bulrushes, Purple Loosestrife, Alligatorweed. Rodeo is systemic - kills the roots for multi year control. There is not a more economical way to control tall weeds. Mix the Rodeo concentrate with water and a non-ionic surfactant (See DyneAmic Surfactant) and apply by using a back pack or Chapin sprayer. For Cattail or Lily control wait until plants are mature. Apply to dry plants. No water use restrictions.

Active Ingredient: Glyphosate, N-(phosphonomethyl)glycine, in the form of its isopropylamine salt 53.8%
For use in: Aquatic Sites-including all bodies of fresh and brackish water which may be flowing, non-flowing or transient. This includes lakes, rivers, streams, ponds, seeps, irrigation and drainage ditches, canals, reservoirs, estuaries and similar sites.
Yield: 2.5 gallons will cover up to 5 acres. Please see product label for complete use instructions. Different target plants may require more concentrate.
Manufactured By: Dow AgroSciences

Product Features:

  • Top choice for emerged aquatic vegetation control
  • Broad-spectrum grass, broadleaf weed and brush control
  • Nonselective
  • Controls entire plant – roots and all
  • More convenient to use in difficult-to-reach areas than mechanical methods

Rating Snapshot

5 stars   20
4 stars   3
3 stars   2
2 stars   0
1 star   0

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Average Customer Rating
4.7 star rating (25 reviews)

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Most Helpful Customer Reviews
  • 26 of 28 people found this review helpful:

    3 of 5 Stars  Good product, but not for every problem
    By JD in Central Oregon on May 30, 2011
    Verified Purchase

    I specifically bought this product to control weeds in my farm pond. It arrived quickly and well packaged; no problem there. Close reading of the Rodeo literature included with the product states, "will not control underwater plants, or those with foliage mostly underwater." Naturally, these were the plants that I wanted to control. Lesson learned: just because it says "aquacide" doesn't mean it controls all plants in the water.

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  • 20 of 20 people found this review helpful:

    4 of 5 Stars  Cattails dying off
    By Sam in Newalla, OK on September 26, 2010
    Verified Purchase

    I have a small pond entirely filled with cattails. Tall ones, too--8-10ft. I sprayed about 1.25 gallons of this at a 5% solution and nearly everyone turned brown within 2 weeks. I will probably have to spray a second time because those things grow so fast.

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  • 18 of 19 people found this review helpful:

    5 of 5 Stars  Works great on Phragmites
    By Phragmite in Wisconsin area on September 22, 2010
    Verified Purchase

    Purchased because it is our state-approved for use on or near water---lakes and streams. Added the surfactant DyneAmic as recommended (which is also safe for use on water). Killed those very invasive tall water-loving phragmites. Used 3 oz to 2 gal of water and it worked well.

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  • 11 of 12 people found this review helpful:

    5 of 5 Stars  Rodeo and Phragmites
    By Elizabeth in St. Michaels, MD on August 22, 2010
    Verified Purchase

    The Rodeo Herbicide mixed with DyneAmic Surfactant are doing a good job killing my Phragmites. I used a 10% mix.

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  • 9 of 9 people found this review helpful:

    4 of 5 Stars  Weed Control Looks Positive
    By Barry in Hadley, MA on August 22, 2010
    Verified Purchase

    Mixed it with a surfactant, as suggested, for control of phragmites near my shop (a very difficult and invasive plant). Initial results are promising from first spraying; a second application may be needed.

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Most Recent Customer Reviews
  • 5 of 5 Stars  THE best herbicide to eliminate lily pads!
    By Don in Bastrop, TX on November 5, 2015

    DoMyOwn claims this Rodeo is the most cost effective treatment for lily pads. They're right! And it's the easiest, too. Don't use it when water temps are high or you risk killing fish when the bacteria that decay the plants deplete the oxygen (water temps under 65 degrees are optimal -- fall is best time of year). See results in ten days. Use with blue dye (it's worth the cost). Mix per gallon: 2.66 oz of Rodeo, 1/2 oz of surfactant, 1/2 oz of dye (or less). They say this 2.5 gal jug will treat 4 acres, but it treats more than that. ...I tried other herbicide that costs MUCH more, but this stuff is the best.

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  • 5 of 5 Stars  Not my First Rodeo
    By Ron in Bexley, OH on August 26, 2015

    Needed a non-polluting herbicide to kill weeds on my rip rap near a small lake. Two applications of Rodeo mixed according to the the formula has knocked out every noxious weed and grass on my shoreline. Could not be easier to use. Safe and Effective.

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  • 5 of 5 Stars  Rodeo Herbicide
    By Anthony in Como, NC on July 6, 2015

    Used Rodeo to kill aquatic plants growing along the edges of my irrigation ponds. Product worked well.

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  • 1 of 2 people found this review helpful:

    5 of 5 Stars  Rodeo
    By John in 4871 WSR 28 Tipton, IN 46072 on September 11, 2014
    Verified Purchase

    A great herbicide especially around our 3/4 acre pond.

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  • 2 of 2 people found this review helpful:

    5 of 5 Stars  Rodeo Herbicide
    By P in West Palm Beach, FL on July 31, 2014
    Verified Purchase

    Rodeo is one of several aquatic herbicides I have been using for almost 25 years around my pond for weed control, but it has become exceedingly more difficult to find any of my local agricultural supply houses that now carry it. DoMyOwnPestControl has provided me the opportunity to obtain Rodeo in a size that I regularly use at a reasonable price. The fact that product label and MSDS information is available online allows me to evaluate whether or not a potential herbicide/fungicide and the like are suitable for my anticipated uses/needs. No product should ever be purchased without ensuring the product is suitable for the application one is planning to use it for. Product delivery from the time I ordered the product to the time I received the product was quicker than I anticipated. 5-stars to DoMyOwnPestControl for the variety of products offered and their response to fulfilling my order.

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  • 5 of 5 Stars  use of rodeo at my farm
    By James in ohio sullivan on July 24, 2014
    Verified Purchase

    been using rodeo for more than 19 years here and im completely satisfied with its safty and performance of this product

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  • 3 of 4 people found this review helpful:

    5 of 5 Stars  Roheo for grass and weed control in a pond or lake
    By Ronnie in Yulee FA on July 7, 2014
    Verified Purchase

    I live on a lake and the grass grows into the water so I spray the grass on the bank with rodeo. Its work great and doesn't hurt the fish,frogs and etc. It works on any plant that grows on or above the water .

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  • 1 of 1 people found this review helpful:

    5 of 5 Stars  Broad spectrum delight!
    By Stephen in East TX on May 29, 2014
    Verified Purchase

    I used Rodeo with the DyneAmic surfactant to kill some invasive willows and saw grass species as well as brush growing on dam of lake. Using a 0.75% solution most everything I needed to control was killed. A few species with very waxy cuticles remain, but I will spot treat with a higher concentration for those specific species and be done. Great stuff!!!

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  • 4 of 4 people found this review helpful:

    5 of 5 Stars  Rodeo Aqua Killer
    By Marion in orlando, florida on April 25, 2014
    Verified Purchase

    This is great stuff but you must be very careful because even the slightest mist or overspray will kill anything growing close to the shoreline. I have used this product before and it prevented new growth for about 5-6 years. I would recommend this to anyone wanting to get rid of lily pads and other shoreline vegetation.

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  • 1 of 1 people found this review helpful:

    5 of 5 Stars  Rodeo Herbicide
    By Bill in Petoskey. Michigan on September 9, 2013
    Verified Purchase

    about 7 days after spraying cattails in a pond roughly 100 feet in dia. and average 3foot depth the Rodeo effects showed up as yellowing stalks and progressively browned over the next week. This was a very thick established stand of cattails. Other water plants have not displayed any signs of damage. Spraying was done in sections and frogs and turtles seem to be holding up well.

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Most Helpful Q&A's

July 13, 2010 Jean asked:

QIs Rodeo Herbicide safe for fish?
We have a large pond fed by a tributary from a river. Parrot feather is growing rapidly. Will this product help rid the pond of this invasive plant?

AYes, Rodeo is safe to use in ponds that have fish and other aquatic life. We just started carrying herbicides due to customer request, but they are not our specialty. We would like to refer you to the manufacturer to enquire about the parrot feather since they are the experts on their Rodeo product. The manufacturer is Dow AgroSciences, and you can reach them at 800-992-5994.

18 of 18 people found this answer helpful.
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June 10, 2010 Debra asked:

QIs Rodeo Herbicide safe for use around dogs?
My dogs swim in and drink out of our pond, is this product safe for them and how long should I keep them away from the pond after using this product? Also, is it safe for the fish?

ARodeo Herbicide is labeld for use in ponds, streams, lakes and other bodies of water including bodies of water that are located in wildlife habitats. Products that would harm fish or other aquatic animals would indicate on the product label that the product could not be used near bodies of water. When used as directed on the product label Rodeo should be safe for dogs and other animals.

16 of 17 people found this answer helpful.
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June 10, 2010 Roy asked:

QRodeo vs Round up?
label active ingredients are the same yet one is labeled for aquatic use and the the other isn't, WHY ?

AIn cases where the active ingredients are the same but the usage is different there could be a couple of reasons, 1. The formula is different, meaning the base is different. The active ingredient is only one component of a finished product or 2. One company tested the product for specific uses and the other company did not. Use products in accordance with their product labels.

13 of 23 people found this answer helpful.
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July 25, 2013 Marianne from Woody Creek, Co asked:

QHow long can you store Rodeo Herbicide without it losing effectiveness?
Rodeo seems to only come in 2.5 gallon containers and I don't need that much. If I buy it now, will it still be good next year and the year after?

ALike most of our herbicides, Rodeo has a shelf life of 3-5 years if kept at moderate temps. Mkae sure that the lid is tightly sealed before storing.

11 of 12 people found this answer helpful.
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February 5, 2014 Jeff from Ga asked:

QDoes Rodeo Herbicide kill lily pads?

ARodeo Herbicide will kill Lily Pads. If you are making an application with a sprayer you would use approx.  2 and 2/3 fluid oz. Rodeo per gallon water or 5 pints Rodeo per acre. Please refer to the product label for application.

9 of 9 people found this answer helpful.
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Most Recent Customer Questions

October 21, 2015 Lois from Frankfort, Ky asked:

QHow long after application of Rodeo to Johnsongrass is it safe to plant starter wild flowers?
I have treated an area in a meadow and plan to make a wildflower area. New plants are in 4" deep cones.


Anytime you use a Glyphosate-based product such as Rodeo Herbicide you want to give at least 2 weeks before planting anything new to allow the glyphosate adaquate time to break down in the soil.

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October 6, 2015 Bob from Lucerne, Ca asked:

QIs there a Roundup type product listed to kill grassy weeds in a water channel?
The grass is growing up out of the water. How can we kill it?


Rodeo Herbicide contains glyphosate, which is the same active ingredient that Roundup contains, and can be used to treat aquatic weeds. Please review the product label to be sure this will be suitable for your needs.

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September 24, 2015 John from Michigan asked:

QHow long will it take to see results after applying Rodeo on phragmites and do I need to add a surfactant to it?


You may notice results within two weeks of application of Rodeo (results will vary) and a surfactant can be added for better results. Per page 9 of the Rodeo product label ,"For partial control of phragmites in Florida and the counties of other states bordering the Gulf of Mexico, apply 7 1/2 pints per acre as a boradcast spray or apply a 1 1/2 percent solution with hand-held equipment.  In other areas of the U.S, apply 4 to 6 pints per acre as a broadcast spray or apply a 3/4 percent solution with hand-held equipment for partial control.  For best results, treat during late summer or fall months when plants are actively growing and in full bloom.  Repeat treatments may be necessary to maintain control"

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September 15, 2015 Debra from San Bernardino, Ca asked:

QHow long can I store Rodeo Herbicide once it has been mixed with water?


Rodeo Herbicide should be used and applied within 24 hours of mixing with water for the most effectiveness.

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June 25, 2015 Dave from Tyler, Tx asked:

QHow much Rodeo to 1 gallon of water and how much surfactant do I dilute with it?
I see that Rodeo is recommended to mix 2 and 2/3 oz per gallon of water, but surfactant is listed as between 0.12oz and 0.64 oz. Will be spraying aquatic weed alligator weed.

A You will use 2 2/3 fl. oz. of Rodeo Herbicide per gallon of water. You can use about 1/3 fl. oz. of Kinetic Nonionic Surfactant.

1 of 1 people found this answer helpful.
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June 16, 2015 Jim from Kingman, Ks. asked:

QWill Rodeo kill weeds growing in the water?
I have a pond that was dry and the weeds began to grow. We got a few days of heavy rain and the pond filled up before I got a chance to kill them. Can in get in my boat, spray the tops of the weeds and get a good kill?

A Rodeo is a great aquatic and landscape non selective herbicide and should control most any water weed you may be trying to eliminate. You can see mixing instructions on the Product Label.

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May 15, 2015 Richard from Montrose, Pa asked:

QWill Rodeo kill filamentous algae and can I use treated water to water flower and vegetable gardens?

A Rodeo Herbicide cannot be applied to vergetables or other edibles. It is not labeled for  filamentous algae. We do carry K-Tea Algaecide. Itis the  best choice for eliminating troublesome green and blue algae including filamentous and planktonic algae.

1 of 1 people found this answer helpful.
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May 5, 2015 Theresa from Bemidji, Mn asked:

QWhat non-ionic surfactant works best with Rodeo when killing bulrushes in a lake?

A Rodeo Herbicide is great for applications in and around a lake for controlling listed weeds. Any non-ionic surfactant will optimize the results of the product. We recommend the Kinetic with this product.

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April 17, 2015 Amanda from Ruston, La asked:

QIs Rodeo Herbicide safe to use around ducks?

A Rodeo Herbicide - 2.5 Gallon is safe for ducks to be around after the treated area has dried.

1 of 1 people found this answer helpful.
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March 28, 2015 Mark from Metairie asked:

QDoes Rodeo kill rose cane, and what would be the mixing ratio?

A Rodeo Herbicide is not specifically labeled for rose cane. It is a glyphosate product and will likely kill what it touches. You will use 2 2/3 fl. oz. per gallon of water.

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