Biocontrol introduction
Target pest: Clematis vitalba (Ranunculales: Ranunculaceae), old man's beard
Agent introduced: Phoma clematidina (Pleosporales: Pleosporaceae), old man's beard leaf fungus, phoma leaf spot
Released:
1996
General comments: The agent released in New Zealand as Phoma clematidina was subsequently reclassified as Didymella clematidis and then Longididymella clematidis. See the Longididymella clematidis entry for details.