Cornell Cooperative Extension

Allegany County

Hydrilla Libary

This collection of resources on hydrilla links to key information such as webinars, press releases and documents on aquatic plant management. Links to many of the items can also be found in context on the other hydrilla webpages. Some file sizes are quite large and large file sizes are usually noted.

GENERAL INFORMATION ON HYDRILLA

  • Monoecious Hydrilla - A Review of the Literature provides a comprehensive overview of published research done on monoecious hydrilla, which is the biotype found in New York. The Appendix includes the abstracts from each article cited in the paper. The source of the review is the New York Invasive Species Information.
  • Hydrilla Hunt Webinar (7/16/2013), featuring Scott Kishbaugh (NYSDEC), Bob Johnson (Racine-Johnson Aquatic Ecologists), Greg Sargis (The Nature Conservancy), and Meg Wilkinson (Natural Heritage Program). Topics include how to identify hydrilla, how to survey for hydrilla, and how to report findings of hydrilla. View supporting materials for this webinar such as: hydrilla identification tips, hydrilla surveying form, description of rake toss method, webinar presentation charts, additional charts and information, and iMap training.
  • Travels with Hydrilla: The Unnatural History of an Accidental Invader by Michael W. Fincham, The Chesapeake Quarterly/Maryland Sea Grant. Details the introduction of hydrilla to the U.S. and its rapid spread.

GENERAL AQUATIC WEED MANAGEMENT

Last updated April 29, 2022

Hydrilla

Report Hydrilla Suspects

An Introduction to Hydrilla in the Cayuga Inlet webinar is available for online viewing. Read new hydrilla information since the webinar. The 36-minute presentation covers:

  • why this plant is so bad
  • where it is
  • clean boating practices
  • what else can be done
  • the importance of outreach to spread the word and not the plant!

Hydrilla Attack, a 15-min. video explains the threat hydrilla presents and the urgency of the situation.

The International Plant Protection Convention's Aquatic Plants Their Uses and Risks highlights hydrilla on page 41, its impacts on page 55, and recommendations for dealing with pest species on page 60.

Visit the imapinvasives website

iMapInvasives is an online tool for invasive species reporting and data management.

Visit the NY Invasive Species Clearinghouse website

Events

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Resources for Teachers

Exotic Aquatics on the Move: invasive species lessons focused on the Great Lakes and matched to national geography standards. Includes Hydrilla info. Last updated 2002.

Understanding Invasive Aquatic Weeds: An interactive online activity booklet of information and fun activities for audiences of all ages. It features five of the worst aquatic weeds found in North America, accompanied by interactive links to key concepts and terminology, video clips, and games that help illustrate the serious problems associated with these plant species. Lots of useful information even though it has a southern focus. Print copies may be available from the Cayuga Lake Watershed Network

The Florida Invasive Plant Education Initiative provides educators with the information and resources needed to teach students about the harmful impacts some non-native, invasive plants are having on our natural areas and neighborhoods. Lots of useful information even though it has a southern focus.