Associations
(
англиски
)
добавил BioImages, the virtual fieldguide, UK
Foodplant / open feeder
larva of Abia sericea grazes on leaf of Knautia arvensis
In Great Britain and/or Ireland:
Foodplant / nest
female of Andrena hattorfiana provisions nest with pollen of Knautia arvensis
Foodplant / nest
female of Andrena marginata provisions nest with pollen of Knautia arvensis
Foodplant / spot causer
pycnidium of Ascochyta coelomycetous anamorph of Ascochyta scabiosae causes spots on live leaf of Knautia arvensis
Foodplant / miner
larva of Aulagromyza similis mines leaf of Knautia arvensis
Foodplant / parasite
embedded sorus of Bauhinus flosculorum parasitises live anther of Knautia arvensis
Foodplant / parasite
sorus of Bauhinus scabiosae parasitises live anther of Knautia arvensis
Remarks: season: 7-8
Foodplant / parasite
conidial anamorph of Erysiphe knautiae parasitises live Knautia arvensis
Foodplant / sap sucker
Macrosiphum rosae sucks sap of live Knautia arvensis
Foodplant / parasite
colony of sporangium of Peronospora violacea parasitises live petal of Knautia arvensis
Plant / resting place / within
puparium of Phytomyza nigritella may be found in leaf (midrib) of Knautia arvensis
Other: minor host/prey
Foodplant / spot causer
mostly hypophyllous colony of Ramularia anamorph of Ramularia tricherae causes spots on live leaf of Knautia arvensis
Foodplant / spot causer
central, 1-3 per spot, minute, black pycnidium of Septoria coelomycetous anamorph of Septoria scabiosicola causes spots on live leaf of Knautia arvensis
Remarks: season: 9-10
