rough star-thistle

synonym: Centaurea alophium, heterophylla, isnardii, praetermissa

organ parasitic mode stage note taxonomic group parasite
unknown unknown Gelechiidae Metzneria hilarella
unknown unknown Pyralidae Epischnia prodromella
flower borer Cosmopterigidae Pyroderces argyrogrammos
flower vagrant Aphididae Uroleucon jaceae
fruit gall Tephritidae Urophora quadrifasciata algerica
flower gall Curculionidae Larinus longirostris
flower gall Eriophyidae Aceria brevisetosa
flower gall Eriophyidae Aceria calathidis
flower gall Tephritidae Urophora hispanica
leaf gall Eriophyidae Aceria centaureae
leaf miner Coleophoridae Coleophora brevipalpella
leaf miner Coleophoridae Coleophora centaureivora
leaf miner Coleophoridae Coleophora conspicuella
leaf pustule aecia uredinia telia Pucciniales Puccinia centaureae
leaf pustule uredinia telia Pucciniales Puccinia centaureae-asperae
stem gall Cynipidae Isocolus lichtensteini
stem gall Cynipidae Isocolus scabiosae
stem gall Cynipidae Phanacis centaureae
leaf vagrant summer generation Aphididae Aphis fabae
leaf vagrant Aphididae Paczoskia obtecta
leaf vagrant summer generation Aphididae Aphis fabae fabae
systemic vagrant Aphididae Protaphis terricola


the part of the plant that most conspicuously is hit by the parasite

all buds: both flower buds and leaf buds
flower: also inflorescence
leaf: also needle, phyllodium, petiole
leaf bud: also unfolding young leaf
fruit: also seed
root: also root stock, runners
root collar: also the lowest part of the stem
stem: also culm, the lower part of the peduncle, in grasses also leaf sheath
systemic: the entire above-ground plant.


borer: larva living internally, almost no outwards signs
down: 0.5-2 mm high fungal down
film: very thin cover of fungal tussue
gall: swelling and/or malformation
grazer: feeding at the outside of the plant
leaf spot discoloured, often ± necrotic, generally not galled, sign of a fungus infection
miner-borer: larve initially makes a mine, lives as a borer later
pustule: plug of fungal tissue, generally brown-black and < 2 mm
stripe: longitudinal line of fungal tissue in a grass leaf
vagrant: (aphids, mites) living freely on the plant, at higher densitiy causing malformations.


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The host plant spectre of a parasite is rarely known exhaustively; this applies in particular at the species level. It is advisable therefore to check at least also the list of all parasites of this genus.


mod 12.ii.2020