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
Anglers Need Tailored Messaging to Inspire Action on Invasive Species
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.
New Research
Midwest Invasive Plant Network Publishes Garlic Mustard Overview for Managers
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.”
New Container Aids in Biocontrol of Hemlock Woolly Adelgid
Montana Lake Study Reveals How Invasive Species Affect Native Food Webs
Montana — Read on Science Daily
A new collaborative study lends greater insight into how invasive species progressively affect native food webs in mountain lakes.
Eating Invasive Fire Ants May Protect Fence Lizards
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
Resort Engineer Receives Invasive Species Award
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.
Deer and Invasive Species Threaten Long-term Survival of Pennsylvania’s Forests
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.”
Lummi Nation Declares Disaster as Tens of Thousands of Invasive European Green Crab Found
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.
Policy
Why the Bradford Pear Tree is Plaguing the South
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.
Bipartisan Bill to Stop Spread of Aquatic Invasive Species Introduced
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.”
White House Commits to Elevating Indigenous Knowledge in Federal Policy Decisions
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.
Sea Lamprey Control in the Great Lakes Could be Better if Canada Pays Up
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.
Assessing the Capacity and Responsiveness of Kenya’s National Invasive Species System
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.
Conversations
A River’s Right to Flow
Southwestern U.S. – Read on bioGraphic
