Plant Parasites of Europe

leafminers, galls and fungi

Medicago x varia

organparasitic modestagenotetaxonomic groupparasite
leafdownErysiphalesLeveillula taurica
leafpustuleuredinia teliadoubtfulPuccinialesUromyces pisi
leafvagrantNoctuidaeAmphipyra tragopoginis
leafvagrantPieridaeColias croceus
flowervagrantLycaenidaeTomares ballus
leafvagrantLycaenidaePlebejus idas
leafvagrantCurculionidaeDonus zoilus
leafvagrantCurculionidaeHypera postica
leafvagrantChrysomelidaeGonioctena fornicata
leafhiddenCrambidaeLoxostege sticticalis
leafhiddenGelechiidaeDichomeris acuminatus
rootvagrantlarvaCurculionidaeSitona inops
rootvagrantlarvararelyCurculionidaeSitona hispidulus
leafdownPeronosporalesPeronospora aestivalis
leaf budgallApionidaeHolotrichapion pisi
leaf budgallApionidaeProtapion filirostre
leaf budgallCecidomyiidaeDasineura medicaginis
leafdownErysiphalesErysiphe pisi var. pisi
leafdownErysiphalesLeveillula papilionacearum
leafminerAgromyzidaeAgromyza frontella
leafminerAgromyzidaeAgromyza nana
leafminerAgromyzidaeLiriomyza congesta
leafpustuleuredinia teliaPuccinialesUromyces striatus
stemborerdoubtfulCurculionidaeHypera nigrirostris


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 9.xii.2021