thistle seedhead weevil

Browsing: thistle seedhead weevil

Between 1969 and 1972, the US released a European weevil to fight invasive musk thistle; it later attacked at least 25 native thistles, including rare and endangered species

Science August 19, 2026

Rhinocyllus conicus (Image Credit: Canva) A biological control programme launched in the United States more than five decades ago has…