Plant Parasites of Europe

leafminers, galls and fungi

Epilobium palustre

marsh willowherb

organparasitic modestagenotetaxonomic groupparasite
leafleaf spotMycosphaerellaceaeRamularia epilobiana
leafleaf spotDothidealesPhaeoramularia punctiformis
leafvagrantNoctuidaeAnarta trifolii
leafvagrantErebidaeDiacrisia sannio
leafvagrantGeometridaeSpargania luctuata
leafvagrantSphingidaeProserpinus proserpina
leafvagrantSphingidaeDeilephila elpenor
leafvagrantChrysomelidaeAltica lythri
rootvagrantChrysomelidaeBromius obscurus
leafvagrantTenthredinidaeAglaostigma langei
leafhiddenTortricidaeClepsis spectrana
stemvagrantAphididaeAphis craccivora
leafvagrantsummer generationrarelyAphididaeMyzus lythri
systemicborerAnguinidaeDitylenchus dipsaci
fruitgallMomphidaeMompha subbistrigella
flowergallCecidomyiidaeDasineura epilobii
leafdownErysiphalesPodosphaera epilobii
leafdownPeronosporalesPlasmopara epilobii
leafleaf spotDoassansialesDoassansia epilobii
leafgallAphididaeAphis pollinaria
leafgallEriophyidaePhyllocoptes epilobiorum
leafminerMomphidaeMompha epilobiella
leafminerMomphidaeMompha locupletella
leafminerMomphidaeMompha propinquella
leafpustuleChytridialesSynchytrium aureum
leafpustuleaeciaPuccinialesCaeoma epilobii-alpini
leafpustuleaecia uredinia teliaPuccinialesPuccinia pulverulenta
leafpustuleuredinia teliaPuccinialesPuccinia varelae
leafpustuleuredinia teliaPuccinialesPucciniastrum epilobii
leafpustuleteliaPuccinialesPuccinia epilobii
stemgallAsterolecaniidaePlanchonia arabidis
stemgallMomphidaeMompha divisella
leafgallrarelyAphididaeAphis epilobiaria
leafvagrantAphididaeAphis praeterita
stemvagrantAphididaeMacrosiphum tinctum
flowergallAphididaeAphis epilobii


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 6.viii.2022