Longitarsus gracilis

Plant species attacked: Tansy ragwort
Biocontrol Agent Type: Root feeding flea beetle
Country of Origin: The population in BC came from Eastern Canada. The originating country is unknown as the agent is adventive.
First Released in BC: 2005
Click on image to view larger photo: LONG GRA adult on leaf LONG GRA damage done to TR leaf
 
Positive monitoring and/or dispersal locations in BC on Tansy ragwort:
(click image to view larger map)
Established Longitarsus gracilis on Tansy ragwort locations
 
This biocontrol agent is currently not available for distribution