Skip to main content
Animal and Plant Health Inspection Service
U.S. Department of Agriculture
USDA FAQ's and resources about coronavirus (COVID-19).  LEARN MORE

USDA Publishes the Final Environmental Assessment for the Release of Ceratapion Basicorne for Biological Control of Yellow Starthistle

Washington, D.C., [September 17, 2019] – The United States Department of Agriculture’s Animal and Plant Health Inspection Service (APHIS) has published an environmental assessment (EA) and Finding of No Significant Impact for the release of the weevil Ceratapion Basicorne to biologically control yellow starthistle. With this action, APHIS will begin issuing permits for the release of this weevil.

Yellow starthistle is a highly invasive weed found in 41 of the 48 contiguous States. It infests grassland habitats and displaces desirable plants in both natural and grazing areas. Yellow starthistle flowers have inch-long spines that deter livestock feeding and cause injury to grazing animals. The weevil Ceratapion Basicorne will help reduce yellow starthistle infestations.

The EA will be available for viewing here: [!docketDetail;D=APHIS-2008-0142].

USDA touches the lives of all Americans each day in so many positive ways. In the Biden-Harris Administration, USDA is transforming America’s food system with a greater focus on more resilient local and regional food production, fairer markets for all producers, ensuring access to safe, healthy and nutritious food in all communities, building new markets and streams of income for farmers and producers using climate smart food and forestry practices, making historic investments in infrastructure and clean energy capabilities in rural America, and committing to equity across the Department by removing systemic barriers and building a workforce more representative of America. To learn more, visit

Complementary Content