Plant Parasites of Europe

leafminers, galls and fungi

Spergula arvensis

corn spurrey

synonym: Spergularia arvensis

organ parasitic mode stage note taxonomic group parasite
leaf leaf spot Mycosphaerellaceae Caryophylloseptoria spergulae
seeds vagrant Lygaeidae Stygnocoris fuligineus
leaf vagrant Chrysomelidae Cassida nobilis
leaf vagrant Curculionidae Hypera arator
leaf vagrant Tetranychidae Schizonobia sycophanta
leaf vagrant Chrysomelidae Cassida margaritacea
leaf vagrant Chrysomelidae Cassida vittata
leaf vagrant Chrysomelidae Cassida flaveola
root borer Chrysomelidae Psylliodes cucullata
flower hidden Thripidae Thrips atratus
fruit borer larva Curculionidae Sibinia arenariae
fruit borer larva Curculionidae Sibinia pyrrhodactyla
root vagrant summer generation Aphididae Aphis sambuci
systemic borer Anguinidae Ditylenchus dipsaci
leaf down Peronosporales Peronospora obovata
leaf pustule telia Pucciniales Puccinia arenariae
root gall Meloidogynidae Meloidogyne hapla
leaf vagrant rarely Aphididae Sitobion avenae


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 7.x.2022