Cornell Cooperative Extension, Keuka Lake Association and Keuka College are teaming up to hold two events aimed at increasing awareness of invasive species and their impact on the land and waterways of the area.

Aquatic Invasive Species

Keuka Lake is under attack from Aquatic Invasive Species (AIS)! Some AIS, such as Eurasian watermilfoil, have been established in the lake for decades and now we’re stuck with them. 

However, there are hopes for managing the highly invasive macroalgae starry stonewort, a newcomer that is present in the Keuka Lake Outlet including the Penn Yan Village boat launch. 

The removal of the water chestnut infestation in the Penn Yan marshlands in the Keuka Lake Outlet is a success story in that it has been effectively removed for several years. Only a fraction of the original infestation remains.

The sooner a newly introduced AIS is identified, the better our chances are for managing and eradicating it, and the public can help.

Join Cornell Cooperative Extension of Yates County and the Keuka Lake Association for an informative and fun free public event to learn to identify AIS and native aquatic plants found in Keuka Lake and the Outlet. 

If you go

What: Aquatic Invasive Species Awareness

When: Drop in between 11 a.m. and 3 p.m.

Where: Penn Yan Village Boat Launch off Keuka Street

Test your skills and win prizes in “name that AIS” and aquatic rake toss contests. Children are encouraged to participate. Meet the Keuka Lake Watercraft Stewards and watch them in action as they work to protect Keuka Lake by removing AIS from boats and trailers. Come to the Penn Yan Village boat launch any time between 11 a.m. and 3 p.m. Sunday July 9. This event will be held in conjunction with New York Invasive Species Awareness Week. Please contact Emily Staychock with any questions at; 315-536-5123 x4127.

Public Invasive Species Trail Walk

Cornell Cooperative Extension of Yates County and Keuka College will host a free invasive species trail walk for the public on the Keuka Lake Outlet Trail

The Keuka Lake Outlet Trail is well loved by many in the community and is a great resource for natural and local history. It runs for about 7 miles alongside the Keuka Lake Outlet from Penn Yan to Dresden and features forests, wetlands, historic structures, and a scenic waterfall. The non-profit group Friends of the Outlet Inc. oversees the stewardship and protection of the Trail (  

Locals as well as visitors to the region enjoy the trail for hiking, biking, horseback riding, and winter recreation. Unfortunately the Outlet Trail is home to a number of invasive plant species. Join Cornell Cooperative Extension of Yates County and Keuka College staff for a guided tour of a section of the Outlet Trail beginning at the Dresden trailhead. 

We will discuss native plants, birds and butterflies, invasive plants, and a collaborative effort to eradicate the toxic invasive plant wild parsnip from that section of the Trail. 

The walk will take place on Monday, July 10 from 9 to 11 a.m. beginning at the Dresden trailhead off Seneca Street in Dresden. 

If you go

What: Free Invasive Species Trail Walk

When: 9–11 a.m. July 10

Where: Dresden Trailhead of Keuka Outlet Trail, off Seneca Street in Dresden

Register:; 315-536-5123

Wear appropriate outdoor clothing and consider bringing bug spray. Please contact Emily Staychock to register for this free event:; 315-536-5123 x4127. This event is being held in conjunction with NY Invasive Species Awareness Week.