Welcome to the
New York Invasive Species Clearinghouse

The New York Invasive Species Information Website - NYIS.INFO and its host, the New York Invasive Species Clearinghouse, [jointly referred to as NYIS.INFO] were founded in October 2008. NYIS.INFO is funded with New York State Environmental Protection Fund resources through a contract with the New York State Department of Environmental Conservation. NYIS.INFO was established in response to Recommendation 5 of the November 2005 report of the New York State Invasive Species Task Force to the Governor and Legislature. The Task Force recommended that the State should integrate invasive species databases and information clearinghouses. This resulted in the creation of the Clearinghouse. The Clearinghouse is authorized and overseen by the New York State Invasive Species Council, which is co-chaired by the New York State Departments of Environmental Conservation and Agriculture and Markets. For more information on who we are, please refer to our About page. More information on New York State's invasive species program can be found on our State and Federal Activities tab under NYS Invasive Species Policies.


Search Invasive Species


  • April 14, 2014. USDA announces $20M to target wild hogs more »
  • April 14, 2014. NY State Parks Invasive Insect Job Openings more »
  • March 19, 2014. Graduate Assistantship - Invasive Species Biology and Management - SUNY Oneonta more »
  • March 3, 2014. Invasives and Cold Weather in NY more »
  • February 12, 2014. CRISP (Catskill Regional Invasive Species Partnership 2013 Annual Report available more »


  • April 17 - April 17 - Beetle Busters 2014 more »
  • April 22 - February 10 - STOP Eurasian Boar Workshop, Sullivan County more »
  • April 23 - Lower Hudson PRISM meeting more »
  • April 29 - March 14 - APIPP spring partner meeting more »
  • April 29 - April 29 - First Stakeholder Meeting for the FL-PRISM. more »
  • April 30 - June 11 - NY iMapInvasives Announces Spring 2014 Training Blitz more »
  • May 8 - One-day hands-on workshop on invasive weed seedling identification planned more »
  • May 14 - May 15 - NEANS (Northeast Aquatic Nuisance Species) Panel to hold Spring 2014 meeting more »
  • June 2 - June 2 - iMap Invasives Training more »
  • June 9 - June 9 - iMap Invasives Training more »
  • June 11 - Eastern Lake Ontario Invasive Species Symposium more »
  • July 17 - Lower Hudson PRISM meeting more »
  • November 18 - November 20 - 8th Annual Cornell Invasive Species Outreach In-Service more »
Species Highlight

Water chestnut

The European water chestnut (scientific name Trapa natans; common names: horned water chestnut, water caltrop), an invasive aquatic plant released inadvertently into waters of the Northeast in the late 1800s, is slowly but inexorably spreading throughout New York State, clogging waterways, lakes and ponds and altering aquatic habitats.

Water chestnut is native to Europe, Asia and Africa. In its native habitat, the plant is kept in check by native insect parasites. These insects are not present in North America and the plant, once released into the wild, is free to reproduce rapidly. Water chestnut colonizes areas of freshwater lakes and ponds and slow-moving streams and rivers where it forms dense mats of floating vegetation, causing problems for boaters and swimmers and negatively impacting aquatic ecosystem functioning.

Click here to read more about the European Water Chestnut

Welcome to NYIS.INFO, the website of the New York Invasive Species Clearinghouse and the Cornell Cooperative Extention Invasive Species Education Program (CCE ISP). NYIS.INFO is your gateway to science-based information, breaking news, and innovative tools for coping with biological invaders in New York. NYIS.INFO links scientists, local, state and federal resource manages, policy setters, educators, and grassroots efforts to help you become part of the battle against invasive species in New York.

NYIS.INFO is home to the National Aquatic Nuisance Species Clearinghouse Aquatic Invasive Species Database. Click here to search the database."

NYIS.INFO hosts the listing of Non-Native Plant Species Invasiveness Assessments for New York. Please click here to access that list.

NYIS.INFO, the New York Invasive Species Clearinghouse, and the Cornell Cooperative Extension Invasive Species Education Program are supported by the New York State Environmental Protection Fund through a contract with the New York State Department of Environmental Conservation.

Current Video Section

Invading Species: Asian Carp Take Over American Lakes and Rivers | Deutschewelle English Global 3000. January 22, 2012. Millions of Asian carp are wreaking havoc in the Mississippi River. The Asian carp are taking over the river and disrupting the balance of the species there. Efforts are being taken to prevent the invasive fish from reaching the Great Lakes. 6 min. 24 sec.