Above: Decision Tree for Garlic Mustard Management, by the Midwest Invasive Plant Network.
The staff and board of the North American Invasive Species Management Association review invasive species headlines each month. This helps us stay on top of trends and further our mission to support, promote, and empower invasive species prevention and management in North America. We then share invasive species news most relevant for people who manage terrestrial and aquatic invasive species across the the United States, Canada, Mexico and the world.
Prevention, Outreach and Education
Illinois – Read on the University of Illinois
This research supports the same outcome that came out of the foundational research that led to the development of the PlayCleanGo campaign. These researchers took it even further, looking at the three types of value systems and recommending ways to tailor invasive species messaging to encourage responsible behavior for system.
Midwest — Download on MIPN
“We synthesized recent research on garlic mustard and developed recommendations to help managers navigate sometimes-conflicting information about whether and how to prioritize management of this species. The 12 page guide includes a decision-support tree and a box discussion of best practices for volunteer pull events.”
Montana — Read on Science Daily
A new collaborative study lends greater insight into how invasive species progressively affect native food webs in mountain lakes.
Southeastern U.S. – Read on The Wildlife Society
Eastern fence lizards may be eating their way to immunity from invasive ant venom in the Southeastern United States.
Detection, Management and Control
Hawaii — Read on Maui News
The annual award recognizes efforts within the landscape and agricultural community toward stopping the spread of invasive species in Maui County.
Pennsylvania — Read/Listen on The Allegheny Front/90.5 WESA
Without these seeds and young trees, the forest is unable to regenerate its next generation of trees. “Between the invasive species and also over-browsing by deer,” says Walter Carson, an associate professor of plant community ecology at the University of Pittsburgh, “those regenerating saplings are often gone.”
Washington – Read on The Olympian
The Lummi Indian Business Council has passed a resolution declaring a disaster after more than 70,000 European green crab — an invasive species — were captured and removed from the Lummi Sea Pond in recent months.
South Carolina — Read on the New York Times
Officials in South Carolina added the Bradford pear to its State Plant Pest List this year, and initiated a ban that goes into effect on Oct. 1, 2024.
United States – Read on Tahoe Daily Tribune
This bipartisan legislation would authorize federal land management agencies to take proven, commonsense measures to prevent the proliferation of invasive species in our nation’s waterways, lakes, reservoirs, and aqueducts. NAISMA has submitted a letter in support of the “Stop the Spread of Invasive Mussels Act.”
Washington, D.C. – Read on High Country News
The White House Office of Science and Technology Policy (OSTP) and the White House Council on Environmental Quality (CEQ) jointly released a new memorandum that commits to elevating Indigenous Traditional Ecological Knowledge (ITEK) in federal scientific and policy processes.
Canada and U.S. — Read/Listen on Interlochen Public Radio
The species is now largely under control now thanks to an international treaty, a specialized pesticide and millions of dollars from the U.S. and Canada. But Canada hasn’t been paying its full share for over a decade.
Africa – Read on Phys.org
Overall the workshop participants recommended that an invasive species management strategy should be developed—adopting a multi-species approach—followed by the establishment of a permanent body that is responsible for regulating the system, for example, the equivalent to the national climate change council.