Plant Parasites of Europe

leafminers, galls and fungi

genus Valeriana

organ parasitic mode stage note taxonomic group parasite
root scale Ortheziidae Arctorthezia cataphracta
leaf vagrant adult Curculionidae Leiosoma cyanopterum
unknown unknown Curculionidae Leiosoma nicolasi
unknown unknown Curculionidae Leiosoma pseudopyrenaeum
leaf vagrant Thripidae Thrips major
leaf vagrant Phlaeothripidae Haplothrips aculeatus
flower hidden Phlaeothripidae Haplothrips distinguendus
flower hidden Thripidae Thrips brevicornis
flower hidden Thripidae Thrips nigropilosus
leaf hidden Thripidae Thrips tabaci
leaf bud hidden Thripidae Thrips viminalis
flower hidden Thripidae Sminyothrips biuncatus
flower predator Aeolothripidae Aeolothrips intermedius
leaf vagrant Nymphalidae Boloria pales
stem borer Cerambycidae Agapanthia violacea
root borer Cerambycidae Vadonia unipunctata
stem borer Mordellidae Mordellistena parvula
stem vagrant Aphididae Aphis valerianae
leaf miner Tortricidae Cnephasia sedana
leaf leaf spot Glomerellaceae Colletotrichum valerianae
leaf leaf spot Phyllostictaceae Phyllosticta valerianae-tripteris
leaf pustule Dothideales incertae sedis Placosphaeria rhytismoides
leaf leaf spot Mycosphaerellaceae Septoria ignatiana
leaf leaf spot Mycosphaerellaceae Septoria valerianae
leaf leaf spot Phyllostictaceae Phyllosticta valerianae
leaf leaf spot Didymellaceae Ascochyta valerianae
leaf leaf spot Capnodiales Ramularia valerianae
flower vagrant Lygaeidae Acompus rufipes
leaf vagrant Lygaeidae Acompus pallipes
leaf vagrant Miridae Lygus wagneri
fruit vagrant Pyrrhocoridae Pyrrhocoris apterus
leaf vagrant Pentatomidae Dolycoris baccarum
flower vagrant Lygaeidae Acompus rufipes
leaf vagrant Noctuidae Melanchra persicariae
leaf vagrant Geometridae Scopula immutata
stem borer Cerambycidae Agapanthia cardui
stem borer Cerambycidae Agapanthia posti
stem borer Noctuidae Gortyna flavago
stem borer Noctuidae Gortyna flavago
leaf vagrant Noctuidae Lacanobia suasa
stem borer Cerambycidae Agapanthia suturalis
leaf vagrant Noctuidae Mniotype solieri
leaf vagrant Geometridae Charissa pullata
leaf vagrant Geometridae Ourapteryx sambucaria
flower vagrant Geometridae Eupithecia subumbrata
leaf vagrant Geometridae Colostygia laetaria
flower vagrant Geometridae Eupithecia selinata
flower vagrant Geometridae Eupithecia satyrata
flower vagrant Geometridae Eupithecia subfuscata
flower vagrant Geometridae Eupithecia valerianata
flower hidden Geometridae Acasis appensata
flower vagrant Geometridae Eupithecia orphnata
flower vagrant Geometridae Chloroclystis v-ata
flower vagrant Geometridae Gymnoscelis rufifasciata
leaf vagrant Nymphalidae Melitaea diamina
leaf vagrant Nymphalidae Melitaea athalia
leaf vagrant Geometridae Scopula imitaria
leaf vagrant Nymphalidae Melitaea didyma
leaf vagrant Cicadellidae Eupteryx vittata
flower hidden Thripidae Thrips flavus
flower hidden Thripidae Taeniothrips picipes
leaf vagrant Tenthredinidae Pachyprotasis variegata
leaf vagrant Tenthredinidae Macrophya albicincta
root collar scale Eriococcidae Rhizococcus munroi
leaf hidden Tortricidae Pandemis dumetana
leaf hidden Tortricidae Cnephasia incertana
leaf miner younger larva Tortricidae Cnephasia asseclana
leaf hidden older larva Tortricidae Cnephasia asseclana
fruit borer younger larva doubtful Adelidae Cauchas rufifrontella
leaf down Erysiphales Golovinomyces orontii
leaf scale Aleyrodidae Aleyrodes lonicerae
leaf vagrant summer generation Aphididae Aphis fabae fabae
leaf miner Agromyzidae Chromatomyia horticola
leaf gall Cecidomyiidae Dasineura valerianae
stem miner Agromyzidae Ophiomyia tranquilla
root gall Agromyzidae Napomyza elegans
leaf vagrant summer generation Aphididae Aphis frangulae beccabungae
systemic borer Anguinidae Ditylenchus dipsaci
flower gall Cecidomyiidae Contarinia valerianae
flower gall Eriophyidae Aceria macrotuberculata
leaf down Erysiphales Golovinomyces valerianae
leaf down Peronosporales Peronospora valerianae
leaf gall Cecidomyiidae Contarinia crispans
leaf miner Agromyzidae Liriomyza strigata
leaf miner Agromyzidae Liriomyza valerianae
leaf pustule Chytridiales Synchytrium aureum
leaf pustule aecia Pucciniales Puccinia iridis
leaf pustule aecia uredinia telia Pucciniales Uromyces valerianae
leaf pustule aecia telia Pucciniales Puccinia commutata
leaf pustule aecia Pucciniales Endophyllum valerianae-tuberosae
leaf pustule telia Pucciniales Puccinia valerianae
leaf vagrant summer generation Aphididae Aphis fabae
root collar vagrant summer generation Aphididae Dysaphis brancoi
root gall Meloidogynidae Meloidogyne hapla
leaf vagrant Aphididae Macrosiphum centranthi
leaf gall rarely Aphididae Macrosiphum cholodkovskyi
systemic vagrant summer generation Aphididae Aphis spiraephaga
systemic vagrant rarely Aphididae Nearctaphis bakeri
leaf vagrant Triozidae Trioza tripteridis
root vagrant Aphididae Dysaphis leefmansi
stem vagrant doubtful Aphididae Macrosiphum stellariae
stem vagrant summer generation Aphididae Macrosiphum rosae
leaf vagrant summer generation Aphididae Myzus persicae
leaf vagrant Aphididae Myzus 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 21.xii.2023