Plant Parasites of Europe

leafminers, galls and fungi

Hieracium lachenalii subsp. cruentifolium

synonym: Hieracium groenlandicum, vulgatum

organ parasitic mode stage note taxonomic group parasite
root gall Cynipidae Aulacidea subterminalis
flower vagrant Noctuidae Hecatera bicolorata
leaf hidden Depressariidae Agonopterix doronicella
flower gall Cynipidae Aulacidea nibletti
flower gall Tephritidae Noeeta pupillata
leaf down Erysiphales Golovinomyces cichoracearum
leaf leaf spot Entylomatales Entyloma hieracii
leaf gall Cecidomyiidae Cystiphora sanguinea
leaf miner Agromyzidae Liriomyza hieracii
leaf miner Agromyzidae Liriomyza hieraciivora
leaf miner Agromyzidae Liriomyza strigata
leaf miner Agromyzidae Phytomyza marginella
leaf pustule uredinia telia Pucciniales Puccinia hieracii
stem borer Agromyzidae Ophiomyia curvipalpis
stem gall Cynipidae Aulacidea hieracii
stem vagrant Aphididae Hyperomyzus hieracii

Organ

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.

PARASITIC MODE

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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IMPORTANT

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.

 

Last modified 29.vi.2022