Hydrilla may be poisoning bald eagles

In Coastal Review Online

by

Hydrilla is slowly choking rivers, ponds and lakes of North Carolina. Now it has become an even more ominous potential threat and an eagle killer.

A newly identified deadly neurotoxin produced by algae found on the underside of the invasive aquatic plant has been linked to numerous bald eagle deaths in DeGray Lake, Arkansas and Thurmond Lake that straddles Georgia and South Carolina, and at Lake Sam Rayburn in Texas.

Continue reading

Bacteria on hydrilla leaves kills birds of prey

From the Raleigh News & Observer

By Darryl Fears, Washington Post

Working late in a tiny Arkansas lab, Susan Wilde found herself alone with a killer.

It startled her. She jumped, let out a yelp, and took off down a hall. Wilde wasn’t running for her life; she was amazed by a discovery. She had uncovered a bacterium, one with a powerful toxin that attacked waterfowl, hiding on the underside of an aquatic leaf that grows nearly everywhere in the United States.

Continue reading

Webinars for National Invasive Species Week, February 22-28

National Invasive Species Awareness Week is scheduled for February 22-28. And according to experts with the Weed Science Society of America (WSSA), it’s a topic that deserves our attention. Non-native plants, animals and pathogens can harm humans and the environment and impact our nation’s economy. The damage done by invasive plants alone costs the U.S. an estimated $34.7 billion a year.

Continue reading

Hydrilla invading Eno River in North Carolina

From the News & Observer

by Kara Bettis

The invasive aquatic plant hydrilla is moving down the Eno River at a rate of 1 mile per year and could begin to hamper boating and other recreational activities in Falls Lake in 12 years, according to researchers at N.C. State University and the N.C. Division of Parks and Recreation.

Students scour lake for invasive plants

From the Salisbury Post (North Carolina)

The Rowan-Salisbury Schools’ white activity bus fit nicely into an empty parking spot at the Flat Creek boat access on the Rowan County side of the Tuckertown Reservoir. The bus seemed out of place flanked by various makes and models of pickups and empty boat trailers. On any given day, the conversations heard around this and similar boat ramps would include the words monofilament, soft body plastics, buzz bait and most likely the phrase “pack of nabs.” However, the 13 Novant Health STEM scholars from Knox Middle School that disembarked from the bus last Wednesday were chattering about macro invertebrates, water quality, biological surveys and invasive exotic aquatic plant life.

Continue reading

Fast-spreading weed invades Lake Waccamaw in North Carolina

Nobody knew what it was at first, just an incredibly fast-spreading aquatic weed near the public boat ramp on Lake Waccamaw.

Rob Emens, an invasive species specialist with the state Division of Water Resources, had no such doubts.

Emens visited the boat ramp in October and immediately knew that the plant fragments he saw floating in the water could be only one thing: the dreaded hydrilla.

Continue reading

EPA Provides Funds to Prevent the Spread of Invasive Species into Lake George

The U.S. Environmental Protection Agency has provided $50,000 to the Lake George Park Commission for the purchase of two boat inspection and washing stations that will reduce the threat of aquatic invasive species being introduced into the Lake George ecosystem. The stations began operating over the 2013 Memorial Day weekend, the start of the annual boating season.

Continue reading