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How do I get rid of cattails and phragmites? – Pond & Lake Q & A


How do I get rid of cattails and phragmites?

How do I get rid of cattails and phragmites? Fran – Disco, TN

Rough Around the Edges?

As you’ve enjoyed your pond over the spring and summer, all of a sudden you begin to see that our pond have built what seems to be an impenetrable wall of Cattails and Phragmites. No worries! Emergent weeds won’t ruin your summer fun. Here are the right tools to get even!

Treating emergent weeds in your pond is a two step process. You will want to focus on dealing with your existing growth first. You can kill Cattails and shoreline grasses down to the root by spraying them directly with Avocet PLX. If you are dealing more with Phragmites, Primrose or Loosestrife then you will see better results using Kraken mixed with Cide-Kick. Make sure you are spraying the plants when they are alive and actively growing so that the aquatic herbicide is carried throughout the plant’s root system. A Tank Sprayer is a great way to apply these aquatic herbicides. Also note if the emergent weed growth is very thick, a couple applications may be needed to gain complete control. Once you see all of the target weeds brown and wilt you can cut them down and drag them away with a Weed Cutter and Pond & Beach Rake.

Once the weeds are cleared away from the edge of the pond you will want to focus on keeping them from growing back. While you can not keep every cattail seed from blowing into your pond, you can extinguish their food sources to deter then from making a repeat performance. Apply some MuckAway pelletized bacteria around the shallow areas of your pond to help digest any nutrient-rich slime that has accumulated on the bottom of the pond over time. This layer of muck acts as fertilizer for new weed growth, smells bad, and as if you needed another reason, it feels terrible between your toes when you are swimming in the pond. Aquatic weeds can also use sunlight as a means to grow so you can benefit from using Pond Dye to shade the pond as well. Not only will you reduce the amount of sun exposure your pond receives you can also choose a color that accents your pond and improves the appearance of the water body.

Some people enjoy the look and coverage that emergent weeds like Cattails provide. If you have considered keeping a few around for aesthetic purposes rest assured it is absolutely harmless to do so. You can still control and maintain these areas of growth using Avocet and Kraken, just be sure to mark off boundaries to keep the weeds from slowly creeping their way back out into the pond and out of control.

POND TALK: Has a wall formed between you and your pond? How did you gain the upper hand over Cattails, Phragmites or other emergent weeds?

Kill unwanted weeds with ease!

2 Responses

  1. Why is avocet plx not shippable to N.Y. State? I have a pond severely overgrown with cattails and would like to contain them. Pulling them out by hand has been less than successful due to the sheer numbers and density of them.

    • Bob,

      The shipping restrictions have been required by your state. All chemicals, not just the Avocet PLX, are restricted. We do carry an Rake/Weed Cutter combo, which would be helpful

      in cutting down and removing the cattails. However, this will not kill the roots of the cattails.

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