Plant Parasites of Europe

leafminers, galls and fungi

Apium graveolens

wild celery

organ parasitic mode stage note taxonomic group parasite
leaf leaf spot Mycosphaerellaceae Cercospora apiicola
leaf leaf spot Pleosporales Mycocentrospora acerina
leaf leaf spot Mycosphaerellaceae Cercospora apii
leaf vagrant Miridae Myrmecophyes variabilis
leaf vagrant Miridae Halticus saltator
leaf vagrant Pentatomidae Graphosoma italicum
fruit vagrant Pentatomidae Ancyrosoma leucogrammes
leaf vagrant Pentatomidae Tholagmus flavolineatus
leaf vagrant Noctuidae Ctenoplusia accentifera
leaf vagrant Noctuidae Anarta trifolii
stem borer Curculionidae Calosirus terminatus
root borer Psilidae Chamaepsila rosae
leaf miner Tephritidae Euleia separata
leaf vagrant Tetranychidae Bryobia praetiosa
unknown unknown Curculionidae Lixus mucronatus
leaf hidden Depressariidae Agonopterix yeatiana
flower hidden Elachistidae Depressaria radiella
leaf leaf spot Capnodiales Ramularia heraclei
root borer larva Curculionidae Calosirus apicalis
leaf vagrant summer generation Aphididae Myzus persicae
root vagrant Aphididae Rhopalosiphoninus latysiphon
systemic borer Anguinidae Ditylenchus dipsaci
leaf down Erysiphales Erysiphe heraclei
leaf down Peronosporales Plasmopara apii
leaf leaf spot Capnodiales Septoria apiicola
leaf miner Agromyzidae Liriomyza bryoniae
leaf miner Epermeniidae Epermenia chaerophyllella
leaf miner Tephritidae Euleia heraclei
leaf pustule aecia Pucciniales Uromyces lineolatus
leaf pustule aecia uredinia telia Pucciniales Puccinia apii
leaf vagrant summer generation Aphididae Aphis fabae
leaf vagrant summer generation Aphididae Aphis frangulae
leaf vagrant summer generation Aphididae Cavariella aegopodii
leaf vagrant Aphididae Myzus ascalonicus
stem vagrant summer generation Aphididae Dysaphis apiifolia


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.


Last modified 15.viii.2023