Associations
provided by BioImages, the virtual fieldguide, UK
Foodplant / internal feeder
larva of Chaetostomella cylindrica feeds within capitulum of Onopordum acanthium
Foodplant / parasite
Erysiphe depressa parasitises live Onopordum acanthium
In Great Britain and/or Ireland:
Foodplant / spot causer
amphigenous colony of Ramularia hyphomycetous anamorph of Ramularia cynarae causes spots on live leaf of Onopordum acanthium
