絲路薊

Foodplant / internal feeder
larva of Acanthiophilus helianthi feeds within capitulum of Cirsium arvense

Foodplant / parasite
immersed oospore of Albugo tragopogonis var. tragopogonis parasitises live leaf of Cirsium arvense

Foodplant / internal feeder
larva of Apion carduorum feeds within stem? of Cirsium arvense
Other: major host/prey

In Great Britain and/or Ireland:
Foodplant / parasite
sporangium of Bremia lactucae parasitises live Cirsium arvense
Other: unusual host/prey

Foodplant / internal feeder
larva of Chaetostomella cylindrica feeds within capitulum of Cirsium arvense

Foodplant / internal feeder
larva of Cleonis piger feeds within stem of Cirsium arvense
Other: major host/prey

Foodplant / saprobe
stromatic, deeply sunken apothecium of Cryptodiscus rhopaloides is saprobic on dead stem of Cirsium arvense
Remarks: season: 6-11

Foodplant / saprobe
scattered, black, raising epidermis pycnidium of Diplodina coelomycetous anamorph of Diplodina cirsii is saprobic on dead, locally bleached stem of Cirsium arvense
Remarks: season: 5-6

Foodplant / internal feeder
larva of Ensina sonchi feeds within capitulum of Cirsium arvense

Foodplant / parasite
Erysiphe mayorii parasitises live Cirsium arvense

Foodplant / parasite
Golovinomyces cichoracearum parasitises live Cirsium arvense
Other: major host/prey

Foodplant / saprobe
apothecium of Hyalopeziza millepunctata is saprobic on dead, standing stem (near base of Cirsium arvense
Remarks: season: 4-11

Foodplant / saprobe
superficial, scattered or in small groups, thinly subiculate perithecium of Hydropisphaera arenula is saprobic on dead stem of Cirsium arvense
Remarks: season: 1-12

Foodplant / saprobe
immersed pseudothecium of Kalmusia clivensis is saprobic on dead stem of Cirsium arvense
Remarks: season: 5-6

Foodplant / feeds on
larva of Larinus planus feeds on Cirsium arvense

Foodplant / open feeder
larva of Lema cyanella grazes on windowed leaf (upper surface) of Cirsium arvense
Other: major host/prey

Foodplant / saprobe
immersed pseudothecium of Leptosphaeria macrospora is saprobic on dead stem of Cirsium arvense
Remarks: season: 4-6

Foodplant / saprobe
partly immersed pseudothecium of Leptosphaeria purpurea is saprobic on dead stem of Cirsium arvense
Remarks: season: 6-7

Foodplant / feeds on
larva of Lixus angustatus feeds on Cirsium arvense

Foodplant / saprobe
sessile apothecium of Mollisia clavata is saprobic on dead stem of Cirsium arvense
Remarks: season: 4-11

Foodplant / feeds on
larva of Mordellistena acuticollis feeds on Cirsium arvense

Foodplant / saprobe
immersed pseudothecium of Nodulosphaeria dolioloides is saprobic on dead stem of Cirsium arvense

Foodplant / saprobe
immersed pseudothecium of Ophiobolus acuminatus is saprobic on dead stem of Cirsium arvense
Remarks: season: 3-6
Other: major host/prey

Foodplant / saprobe
numerous, scattered to gregarious, almost superficial, brown-black pycnidium of Rhabdospora coelomycetous anamorph of Ophiobolus cirsii is saprobic on dead stem of Cirsium arvense
Remarks: season: 2-5

Foodplant / parasite
underground tuber of Orobanche reticulata parasitises root of Cirsium arvense
Other: major host/prey

Plant / resting place / on
adult of Oulema obscura may be found on Cirsium arvense
Remarks: season: 7-

Foodplant / saprobe
short-stalked apothecium of Pezizella discreta is saprobic on dead stem of Cirsium arvense
Remarks: season: 10-11

Foodplant / saprobe
sessile, in clusters of 2 to 5 apothecium of Pezizella glareosa is saprobic on dead stem of Cirsium arvense
Remarks: season: 9-10
Other: major host/prey

Foodplant / saprobe
fruitbody of Phanerochaete calotricha is saprobic on dead, decayed stem of Cirsium arvense
Other: unusual host/prey

Foodplant / saprobe
sometimes in rows conidioma of Phoma coelomycetous anamorph of Phoma cirsii is saprobic on dead leaf of Cirsium arvense

Foodplant / saprobe
immersed pycnidium of Phoma coelomycetous anamorph of Phoma rubella is saprobic on dead, red stained (epidermis) stem of Cirsium arvense
Remarks: season: 4-5

Foodplant / saprobe
sometimes in rows pycnidium of Phomopsis coelomycetous anamorph of Phomopsis cirsii is saprobic on dead stem of Cirsium arvense
Remarks: season: 10-5

Foodplant / feeds on
epiphyllous, scattered pycnidium of Phyllosticta coelomycetous anamorph of Phyllosticta cirsii feeds on leaf of Cirsium arvense
Remarks: season: 9

Plant / resting place / within
puparium of Phytomyza autumnalis may be found in leaf-mine of Cirsium arvense
Other: major host/prey

Plant / resting place / on
puparium of Phytomyza cirsii may be found on leaf of Cirsium arvense
Other: major host/prey

Foodplant / saprobe
erumpent apothecium of Pirottaea brevipila is saprobic on dead stem of Cirsium arvense
Remarks: season: 6

Foodplant / pathogen
Pseudomonas syringae strain CT99B016C infects and damages chlorotic leaf (upper) of Cirsium arvense

Foodplant / saprobe
effuse colony of Pseudospiropes dematiaceous anamorph of Pseudospiropes rousselianus is saprobic on dead stem of Cirsium arvense

Foodplant / parasite
Puccinia cnici parasitises live Cirsium arvense
Remarks: Other: uncertain

Foodplant / pathogen
telium of Puccinia punctiformis infects and damages Cirsium arvense

Foodplant / saprobe
erumpent apothecium of Pyrenopeziza adenostylidis is saprobic on dead stem of Cirsium arvense
Remarks: season: 5-11

Foodplant / saprobe
erumpent apothecium of Pyrenopeziza carduorum is saprobic on dead stem of Cirsium arvense
Remarks: season: 5-8

Foodplant / spot causer
amphigenous colony of Ramularia hyphomycetous anamorph of Ramularia cynarae causes spots on live leaf of Cirsium arvense

Foodplant / saprobe
immersed, more or less linearly arranged pycnidium of Sphaeronaema coelomycetous anamorph of Sphaeronaema floccosum is saprobic on dead stem of Cirsium arvense
Remarks: season: 4

Foodplant / saprobe
colony of Stachybotrys dematiaceous anamorph of Stachybotrys dichroa is saprobic on dead stem of Cirsium arvense
Remarks: season: 4-9

Foodplant / internal feeder
larva of Tephritis cometa feeds within capitulum of Cirsium arvense
Other: sole host/prey

Foodplant / feeds on
larva of Terellia ruficauda feeds on Cirsium arvense

Foodplant / internal feeder
larva of Terellia tussilaginis feeds within capitulum of Cirsium arvense
Other: unusual host/prey

Foodplant / sap sucker
nymph of Tingis ampliata sucks sap of green parts (not involucre) of Cirsium arvense
Remarks: season: late 6-early 9

Foodplant / gall
larva of Urophora cardui causes gall of live stem of Cirsium arvense
Other: sole host/prey

Foodplant / feeds on
larva of Urophora stylata feeds on Cirsium arvense

Foodplant / internal feeder
larva of Xyphosia miliaria feeds within capitulum of Cirsium arvense