Invasive Species - What's New on NISIC's Site

Maryland renamed the northern snakehead to the Chesapeake Channa in April 2024. The name change aims to increase public interest in eating the fish and control its population. The Maryland Department of Natural Resources will begin changing the name on January 1, 2025.
See also: Senate Bill 207 / House Bill 19

A study conducted by Maryland Department of Natural Resources Biologist Dr. Joseph Love illuminates one of the biological factors that could be contributing to Chesapeake Channa’s efficient spread through Maryland’s waters. The study, published in the July 2024 edition of Northeastern Naturalist, found that the majority of female Chesapeake Channa, also known as northern snakehead, collected from the upper Chesapeake Bay carried eggs in two distinct sizes, suggesting those fish could spawn twice a year.

The Citizen Carp Control is a national public awareness campaign working to educate, empower, and advocate for enhanced control and removal of invasive carps.

The 2024 Winter Lionfish Throw Down (October 14 - December 31, 2024) is a Lionfish hunting tournament held throughout the State of Florida waters. Our goal is to encourage the culling of Lionfish through the winter months to mitigate the damage done by Lionfish all year long. After the FWC’s Summer Challenge the focus on culling Lionfish declines and our goal is to keep up the hunting momentum throughout the whole year.  The Throw Down will mirror many of the Florida Fish and Wildlife Conservation Commission's Lionfish Challenge rules and is being done with their full support. 

The 2025-2030 Strategic Plan outlines a bold vision focused on science-based conservation, empowering land stewards, and advocating for strong public policies to stop the spread of invasive plants. Provides a plan summary overview, as well as the full report for a detailed breakdown of their proposed steps to achieve this vision.

The U.S. Department of Agriculture’s (USDA) Animal and Plant Health Inspection Service (APHIS), and the California Department of Food and Agriculture (CDFA) in collaboration with County Agricultural Commissioners, are proud to announce that after a year of hard work we have eradicated all populations of invasive fruit flies from California. This significant achievement is a testament to the hard work of our agencies and the critical support from the public. 

The Clemson University Department of Plant Industry destroyed the first secondary nests of the yellow-legged hornet this month in South Carolina near Hilton Head Island. Yellow-legged hornets were also detected in November 2023 in a trap in South Carolina. 

A new approach to tackling the spotted-wing drosophila involves manipulating the behavior of these insects. The spotted-wing drosophila is an invasive pest of fruits that infests ripe, ready-to-eat fruit. The pest poses a significant threat to farmers because it is very difficult to control with standard pesticides. ARS scientists have devised a solution involves manipulating the behavior of these insects by disguising healthy fruit as being infected with an unappealing pathogen.

This three-part webinar series will highlight project-based applications of remote sensing for plant species of interest especially those affecting grasslands and aquatic inland lakes and waterbodies, and more with a lens towards innovative uses of hyperspectral data for additional invasive species detection.

Register to attend: Aug 14, Aug 21, Aug 28, 2024 -- Three 90 min sessions (12-1:30 pm EDT)

Farmers in the southeastern U.S. struggle with the invasive guava root-knot nematode, a microscopic roundworm, which infects and damages a variety of crops, particularly sweetpotatoes. To combat this worm, ARS researchers at the U.S. Vegetable Laboratory in Charleston, South Carolina, have identified a sweetpotato line from the agency’s expansive germplasm collection that has shown high levels of resistance to the guava root-knot nematode as well as resistance to other crop insects.