Plant Parasites of Europe

leafminers, galls and fungi

genus Valeriana

organparasitic modestagenotetaxonomic groupparasite
leafvagrantNymphalidaeMelitaea diamina
leafvagrantNymphalidaeMelitaea athalia
leafvagrantGeometridaeScopula imitaria
leafvagrantNymphalidaeMelitaea didyma
leafvagrantCicadellidaeEupteryx vittata
flowerhiddenThripidaeThrips flavus
flowerhiddenThripidaeTaeniothrips picipes
leafvagrantTenthredinidaePachyprotasis variegata
leafvagrantTenthredinidaeMacrophya albicincta
root collarscaleEriococcidaeRhizococcus munroi
leafhiddenTortricidaePandemis dumetana
leafhiddenTortricidaeCnephasia incertana
leafmineryounger larvaTortricidaeCnephasia asseclana
leafhiddenolder larvaTortricidaeCnephasia asseclana
fruitboreryounger larvadoubtfulAdelidaeCauchas rufifrontella
leafdownErysiphalesGolovinomyces orontii
leafscaleAleyrodidaeAleyrodes lonicerae
leafvagrantsummer generationAphididaeAphis fabae fabae
leafminerAgromyzidaeChromatomyia horticola
leafgallCecidomyiidaeDasineura valerianae
stemminerAgromyzidaeOphiomyia tranquilla
rootgallAgromyzidaeNapomyza elegans
leafvagrantsummer generationAphididaeAphis frangulae beccabungae
systemicborerAnguinidaeDitylenchus dipsaci
flowergallCecidomyiidaeContarinia valerianae
flowergallEriophyidaeAceria macrotuberculata
leafdownErysiphalesGolovinomyces valerianae
leafdownPeronosporalesPeronospora valerianae
leafgallCecidomyiidaeContarinia crispans
leafminerAgromyzidaeLiriomyza strigata
leafminerAgromyzidaeLiriomyza valerianae
leafpustuleChytridialesSynchytrium aureum
leafpustuleaeciaPuccinialesPuccinia iridis
leafpustuleaecia uredinia teliaPuccinialesUromyces valerianae
leafpustuleaecia teliaPuccinialesPuccinia commutata
leafpustuleaeciaPuccinialesEndophyllum valerianae-tuberosae
leafpustuleteliaPuccinialesPuccinia valerianae
leafvagrantsummer generationAphididaeAphis fabae
root collarvagrantsummer generationAphididaeDysaphis brancoi
rootgallMeloidogynidaeMeloidogyne hapla
leafvagrantAphididaeMacrosiphum centranthi
leafgallrarelyAphididaeMacrosiphum cholodkovskyi
systemicvagrantsummer generationAphididaeAphis spiraephaga
systemicvagrantrarelyAphididaeNearctaphis bakeri
leafvagrantTriozidaeTrioza tripteridis
rootvagrantAphididaeDysaphis leefmansi
stemvagrantdoubtfulAphididaeMacrosiphum stellariae
stemvagrantsummer generationAphididaeMacrosiphum rosae
leafvagrantsummer generationAphididaeMyzus persicae
leafvagrantAphididaeMyzus ascalonicus


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 10.v.2021