Subanguina picridis (Kirj.)

Plant species attacked: Diffuse knapweed | Russian knapweed
Biocontrol Agent Type: Gall-forming nematode
Country of Origin: The populations released in BC orginated in Tajikistan
First Released in BC: 1985
Click on image to view larger photo: Subanguina picridis stem gall on knapweed
Positive monitoring and/or dispersal locations in BC on Diffuse knapweed:
(click image to view larger map)
Established Subanguina picridis on Diffuse knapweed locations
This biocontrol species is currently not available for distribution
View the in-depth Subanguina picridis information page here