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

Aphis chloris (Koch)

Plant species attacked: St. John's wort
Biocontrol Agent Type: Sap sucking aphid
Country of Origin: The populations released in BC derive from populations collected in Austria, Germany, Hungary and Switzerland
First Released in BC: 1979
Click on image to view larger photo: Aphis chloris
Positive monitoring and/or dispersal locations in BC on St. John's wort:
(click image to view larger map)
Established Aphis chloris on St. John's wort locations
View the in-depth Aphis chloris information page here
This biocontrol agent is currently not available for distribution

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