Yellow Starthistle (Centaurea solstitialis) is native to the Mediterranean region and has become an invasive species in North America.
Yellow Starthistle is considered a problem due to its aggressive growth, rapid spread, and the ability to form dense stands, displacing native vegetation and impacting ecosystems. It is known for its spiny leaves and rapid colonization of disturbed areas, reducing biodiversity and impacting forage availability for livestock.
Effective management strategies for Yellow Starthistle involve a combination of preventive measures, early detection, and control methods. Control may include manual removal, mowing, targeted herbicide application, and the introduction of biological controls, such as insects that feed on the plant. Integrated pest management practices are often recommended to address the invasive nature of Yellow Starthistle. For specific guidance, please refer to the information on the USDA Forest Service website.