Plant Parasites of Europe

leafminers, galls and fungi

Alnus viridis

synonym: Alnus alnobetula

organparasitic modestagenotetaxonomic groupparasite
leafvagrantadultChrysomelidaeLuperus viridipennis
leafvagrantTenthredinidaeNematinus acuminatus
leafhiddenPamphilidaePamphilius pallipes
leafvagrantTenthredinidaeEuura umbrata
leafvagrantTenthredinidaeTenthredo velox
leafvagrantdoubtfulTenthredinidaeNematinus luteus
leafvagrantTenthredinidaeNematus latipes
leafhiddendoubtfulPamphilidaePamphilius nigrifemoratus
leafvagrantlarvaTenthredinidaeHemichroa crocea
leafoviposition scareggTenthredinidaeHemichroa crocea
leafvagrantTenthredinidaePlatycampus luridiventris
leafhiddenGelechiidaeCarpatolechia proximella
flowerborerTortricidaeEpinotia subuculana
leafoviposition scareggTenthredinidaeHemichroa australis
leafvagrantlarvaTenthredinidaeHemichroa australis
leafminerCurculionidaeAnoplus setulosus
stemscaleDiaspididaeChionaspis salicis
stemborerSesiidaeSynanthedon spheciformis
stemvagrantPsyllidaePsylla fusca
stemvagrantPsyllidaePsylla alni
flowergallTaphrinalesTaphrina alni
leafdownErysiphalesErysiphe penicillata
leafdownErysiphalesErysiphe vernalis
leafdownErysiphalesPhyllactinia alnicola
leafgallCecidomyiidaeDasineura tortilis
leafgallEriophyidaeAcalitus brevitarsus
leafgallEriophyidaeEriophyes euryporus
leafgallEriophyidaeEriophyes laevis
leafgallTaphrinalesTaphrina viridis
leafminerBucculatricidaeBucculatrix cidarella
leafminerColeophoridaeColeophora alnifoliae
leafminerColeophoridaeColeophora binderella
leafminerColeophoridaeColeophora milvipennis
leafminerColeophoridaeColeophora serratella
leafminerEriocraniidaeEriocrania alpinella
leafminerEriocraniidaeParacrania chrysolepidella
leafminerGracillariidaePhyllonorycter alpina
leafminerGracillariidaePhyllonorycter klemannella
leafminerGracillariidaePhyllonorycter rajella
leafminerHeliozelidaeHeliozela resplendella
leafminerrarelyNepticulidaeEctoedemia minimella
leafminerNepticulidaeStigmella alnetella
leafminerNepticulidaeStigmella glutinosae
leafminerTenthredinidaeFenusa dohrnii
leafminerTenthredinidaeFenusa pumila
leafminerTenthredinidaeHeterarthrus vagans
leafminerTenthredinidaeScolioneura betuleti
leafpustuleuredinia teliaPuccinialesMelampsoridium betulinum
stemvagrantAphididaeClethrobius comes
stemvagrantAphididaeClethrobius comes
stemvagrantPsyllidaePsylla alpina


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.


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