Hydrilla (Hydrilla verticillata)

Hydrilla: An Invasive Water Weed

Hydrilla (Hydrilla verticillata), dubbed one of the world's most invasive aquatic plants, was found in the Cayuga Inlet in 2011.  The Hydrilla Task Force is working to eradicate hydrilla in the Cayuga Lake Watershed

2018 08 13hydrillatreatment

Treatment off Stewart Park

4 acres of hydrilla treated with copper compound August 13. At no time will the herbicide concentration exceed safe water use standards for humans, wildlife, or fish.

Read more

Report hydrilla

Report Hydrilla Suspects!

Think you've found hydrilla among the Cayuga Lake Watershed? Report a suspect by clicking here!

Read more

Dan munsell treman summer

How You Can Help!

Everyone can help in the fight against hydrilla. Learn more about what you can do to stop the spread of this invasive water weed.

Read more

Allied biological 3

Management Options

There are four main management options for hydrilla: biological, chemical, mechanical, and physical.

Read more

Florida channel cleared

Economic Impacts

Hydrilla can reduce water flow, clog or damage water control structures, reduce fish populations, and compromise recreational uses such as boating & swimming.

Read more


Blue-Green Algae

Studies have linked invasive hydrilla to a deadly toxin produced by blue-green algae, resulting in illness and death of wild birds and domestic pets.

Read more


Sharon Anderson
Environment Team Leader
(607) 272-2292 ext. 156

Last updated December 20, 2018