Cornell Cooperative Extension

Monroe County
overhead image of Tinker Pond, where hydrilla was identified in Oct. 2015

Pond at Tinker Nature Park

Hydrilla

Hydrilla verticillata, the highly invasive aquatic plant and a New York State priority species, was confirmed to be present in Monroe County on September 28, 2015.  It was found in a small pond located at Tinker Nature Park located off Calkins and Pittsford Henrietta Townline Road. Plant samples were confirmed to be Hydrilla by both James Balyszak (Hydrilla Task Force), and Bob Johnson (Racine-Johnson Aquatic). 

Please visit the pages in this section to learn more about invasive hydrilla and what steps you can take to help prevent its spread!

Bloom of cyanobacteria ("blue-green algae"). traces shaped streaks are traces of fish and ducks that run on water, "breaking" the biofilm. The samples emit a strong odor of algae (spirulina type). Location: "Quai du Wault" in Lille, not far from downtown (north of France; Location vai google maps: 50.637485,3.05425)

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.

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Hydrilla, Hydrilla verticillata

About Hydrilla

Hydrilla is an aquatic invasive species in New York State. Learn how you can identify the plant and what you can do to help stop its spread!

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USGS map of hydrilla infestations in the U.S. as of 2011

Where Else is Hydrilla?

Although hydrilla is native to Australia, Asia, and Africa, it's been found in numerous states throughout the U.S. throughout the last 50 years.

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Linderman Creek photo

Summary of Options

There are many different options for hydrilla eradication. View this chart for a summary of all the available treatment options.

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Last updated October 6, 2015

Hydrilla

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