PhragmitesIdentifying Phragmites

Physical Characteristics


  • Blades flat
  • 0.39-1.5 inches wide


  • Loose, branching cluster
  • Spikelets few-flowered


  • Hollow stem
  • 3-9 feet tall
  • 0.2-0.59 inches thick

Controlling Phragmites In Lakes And Ponds

Physical Management of Phragmites

Phragmites has a root system which means the roots need to be destroyed to prevent the plant from coming back.

Products To Physically Manage Phragmites

Aquatic Vegetation Groomer-          Aquatic Vegetation Groomer (AVG)

The AVG is a gas powered underwater aquatic weed cutter that was especially designed to cut down Phragmites at their root base. It uses two circular reciprocating blades which prevents it from getting tangled up like other weed whacker products sold online.

The AVG can be used in water depths up to 4 feet and comes with a 2 year warranty. It has a powerful 24 cc 2-cycle engine and a sealed gear box to keep it running smooth for years to come. Additionally, we have an optional shoulder strap and an optional float mount available to make the job of cutting down Phragmites that much easier.


Herbicide Control of Phragmites

Herbicide control is a great option for Phragmites because you can literally apply the herbicide and then sit back and let it do its work. Most herbicides can control Phragmites throughout the season and only needs to be applied once a year.

Herbicide Products To Control Phragmites

Rodeo Herbicide-          Rodeo Herbicide

 Rodeo herbicide is extremely effective at killing Phragmites at their roots and preventing them from coming back for years. Its active ingredient is Glyphosate† N-(phosphonomethyl) glycine, isopropylamine salt which has shown to be practically not-toxic to freshwater invertebrates.

After applying Rodeo herbicide you should start to see results within 2 to 4 days and within 7 to 10 days your Phragmites problem should disappear. However, you want to make sure there is no rain in sight for 6 hours after applying for maximum results.