Government of British Columbia Home
Forests, Lands & Natural Resource Operations
Invasive Plant Program

Altica carduorum

Plant species attacked: Canada thistle
Biocontrol Agent Type: Foliar feeding beetle
Country of Origin: The populations released in BC originated in Switzerland and France
First Released in BC: 1964
There are no positive monitoring and/or dispersal locations in BC on Canada thistle
This biocontrol agent is currently not available for distribution
View the in-depth Altica carduorum information page here

"Healthy, functioning BC ecosystems, free of the impacts of invasive plants."