Plant Parasites of Europe

leafminers, galls and fungi

Chamerion angustifolium

rosebay willowherb

synonym: Chamaenerion angustifolium; Epilobium angustifolium, gesneri, spicatum

organparasitic modestagenotetaxonomic groupparasite
leafvagrantNoctuidaeMamestra brassicae
leafvagrantNoctuidaeHyppa rectilinea
leafvagrantNoctuidaeXylena vetusta
leafvagrantGeometridaeEmaturga atomaria
leafvagrantGeometridaeEcliptopera silaceata
leafvagrantGeometridaeDysstroma citrata
leafvagrantGeometridaeSpargania luctuata
leafvagrantGeometridaeOrthonama vittata
leafvagrantSphingidaeDeilephila elpenor
leafvagrantSphingidaeHyles gallii
leafvagrantSphingidaeProserpinus proserpina
leafvagrantdoubtfulTenthredinidaeSiobla ruficornis
leafvagrantCixiidaeCixius distinguendus
leafvagrantCicadellidaeSonronius binotatus
leafvagrantCicadellidaeEvacanthus interruptus
leafvagrantPhlaeothripidaeLiothrips austriacus
flowerhiddenThripidaeThrips flavus
leafvagrantPhlaeothripidaeLiothrips setinodis
leafvagrantChrysomelidaeAltica ampelophaga
leafvagrantChrysomelidaeAltica chamaenerii
leafvagrantChrysomelidaeAltica lythri
leafvagrantChrysomelidaeAltica palustris
leafvagrantChrysomelidaeAltica impressicollis
rootvagrantChrysomelidaeBromius obscurus
leafvagrantTenthredinidaeTenthredo silensis
leafvagrantTenthredinidaeTenthredo colon
leafvagrantTenthredinidaeAglaostigma langei
leafhiddenScythrididaeScythris inspersella
leafhiddenScythrididaeScythris noricella
leafhiddenMomphidaeMompha conturbatella
leafhiddenTortricidaeClepsis spectrana
leafmineryounger larvaTortricidaeCnephasia stephensiana
leafhiddenolder larvaTortricidaeCnephasia stephensiana
leafvagrantdoubtfulAphididaeAphis praeterita
rootborerMomphidaeMompha idaei
fruitborersummer generationMomphidaeMompha sturnipennella
flowergallCecidomyiidaeDasineura epilobii
leafdownErysiphalesPodosphaera epilobii
leafgallCecidomyiidaeDasineura kiefferiana
leafgallDiaporthalesApiognomonia errabunda
leafgallEriophyidaePhyllocoptes epilobiorum
leafminerMomphidaeMompha epilobiella
leafminerMomphidaeMompha langiella
leafminerMomphidaeMompha raschkiella
leafminerMomphidaeMompha sexstrigella
leafpustuleaecia uredinia teliaPuccinialesPuccinia pulverulenta
leafpustuleuredinia teliaPuccinialesPucciniastrum epilobii
leafpustuleteliaPuccinialesPuccinia gigantea
leafvagrantsummer generationAphididaeAphis fabae
leafvagrantsummer generationAphididaeAphis frangulae
leafvagrantsummer generationAphididaeAphis salicariae
leafvagrantEriophyidaeEpitrimerus chamaenerii
stemborerspring generationMomphidaeMompha sturnipennella
stemgallmainCurculionidaeAuleutes epilobii
stemgalldoubtfulMomphidaeMompha divisella
rootgallPsyllidaeCraspedolepta nebulosa
rootgallPsyllidaeCraspedolepta subpunctata
leafvagrantsummer generationmainAphididaeAphis frangulae frangulae
systemicvagrantAphididaeAphis mirifica
stemvagrantAphididaeMacrosiphum tinctum
leafvagrantAphididaeMacrosiphum lisae


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 13.ix.2021