Invasive Species Threaten US Agriculture and Ecosystems

Invasive species disrupt natural ecosystems by altering food webs, outcompeting native organisms and causing substantial economic losses. The Intergovernmental Science-Policy Platform on Biodiversity reports that invasive alien species drive about 60 % of documented global extinctions, and in the United States damages and control costs run into the tens of billions of dollars each year, exemplified by zebra mussels clogging Great Lakes water intakes.

The U.S. Department of Agriculture’s Animal and Plant Health Inspection Service is targeting the spread of the spotted lanternfly, a destructive pest that feeds on fruit, ornamental and hardwood trees. Officials warn that invasive pests hitchhike on plants, firewood, vehicles, outdoor equipment and even online‑ordered seeds. Travel abroad, online shopping and outdoor recreation such as camping or moving firewood are identified as major pathways for pests like the spotted lanternfly and emerald ash borer to reach new areas. USDA personnel are working with state and local partners, businesses and the public to detect, contain and eradicate these threats before they cause further damage to agriculture, forests and food supplies.