Curlyleaf Pondweed

 

Potamogeton crispus

 

 

Curlyleaf is a submersed aquatic plant that generally grows in 3-15 feet of water. In spring, curlyleaf pondweed can form dense mats that may interfere with boating and other recreation on lakes. Curlyleaf can also cause ecological problems because it can displace native aquatic plants. In midsummer, curlyleaf plants usually die back, which results in mats of dying plants piling up on shorelines, this event is often followed by undesirable algal blooms. This is a result of the plants decomposing and adding excess nutrients in the water.

 

Like most invaders, curlyleaf pondweed is not native to North America.  It was brought to the United  States as a popular aquarium plant. Curlyleaf tolerates low water clarity and will readily invade disturbed areas. It is believed to spread from one body of water to another primarily by the unintentional transfer of turions carried on trailered boats and  personal watercraft

 

Long-term management requires the reduction or elimination of turions to interrupt the lifecycle.  Cutting can be effective, if the precautions are taken to retrieve turions.  Ultimately, the most important action that you can take to limit the spread of curlyleaf and other non-native aquatic plants is to remove all vegetation from your watercraft before you move it from one body of water to another. 

 

 

Turion

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