Plant Parasites of Europe

leafminers, galls and fungi

Melampyrum pratense

common cow-wheat

synonym: Melampyrum laciniatum.vulgatum

organparasitic modestagenotetaxonomic groupparasite
leafleaf spotMycosphaerellaceaeSeptoria melampyri
leafleaf spotMycosphaerellaceaeRamularia melampyri
predatorMycosphaerellaceaeRamularia coleosporii
leafvagrantMiridaeCapsodes flavomarginatus
leafvagrantdoubtfulMiridaeHadrodemus m-flavum
leafvagrantMiridaeLygocoris pabulinus
leafvagrantMiridaeMecomma ambulans
leafvagrantMiridaePhytocoris austriacus
leafvagrantCydnidaeAdomerus biguttatus
leafscaleAleyrodidaeAleyrodes lonicerae
leafvagrantNymphalidaeEuphydryas maturna
leafvagrantNymphalidaeMelitaea athalia
flowerborerGeometridaeEupithecia plumbeolata
flowerhiddenCrambidaeAnania fuscalis
leafmineryounger larvaTortricidaeCnephasia asseclana
leafhiddenolder larvaTortricidaeCnephasia asseclana
fruitborerAgromyzidaePhytomyza flavofemorata
flowerdownPeronosporalesPeronospora tranzscheliana
leafdownErysiphalesGolovinomyces orontii
leafdownErysiphalesPodosphaera phtheirospermi
leafdownPeronosporalesPeronospora melampyri
leafpustuleaeciaPuccinialesPuccinia nemoralis
leafpustuleuredinia teliaPuccinialesColeosporium melampyri
leafpustuleuredinia teliaPuccinialesCronartium flaccidum
leafvagrantsummer generationAphididaeBrachycaudus persicae
stemborerAgromyzidaePhytomyza rostrata
leafvagrantAphididaeMacrosiphum melampyri
leafvagrantsummer generationAphididaeAphis frangulae


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 21.xi.2022