Plant Parasites of Europe

leafminers, galls and fungi

Rorippa amphibia

great yellow-cress

synonym: Brachiolobus amphibius; Myagrum, Nasturtium, amphibium; Radicula amphibia

organparasitic modestagenotetaxonomic groupparasite
leafvagrantPieridaePieris brassicae
leafvagrantPieridaePieris rapae
leafvagrantPieridaePieris napi
leafvagrantPieridaePieris brassicae
leafvagrantPieridaePieris rapae
rootvagrantChrysomelidaePhyllotreta cruciferae
fruitborerlarvaCurculionidaeCeutorhynchus querceti
leafminerChrysomelidaePhyllotreta nemorum
flowerhiddenCrambidaeEvergestis extimalis
stemgallCurculionidaeCeutorhynchus griseus
leafvagrantChrysomelidaePhaedon laevigatus
leafvagrantChrysomelidaePhaedon cochleariae
leafvagrantChrysomelidaePhaedon armoraciae
rootvagrantChrysomelidaePhyllotreta undulata
rootvagrantChrysomelidaePhyllotreta punctulata
rootvagrantChrysomelidaePhyllotreta atra
rootborerChrysomelidaePhyllotreta ochripes
rootvagrantChrysomelidaePhyllotreta dilatata
rootvagrantChrysomelidaePhyllotreta tetrastigma
rootvagrantChrysomelidaePhyllotreta exclamationis
rootvagrantChrysomelidaePhyllotreta diademata
fruitborerlarvaCurculionidaeCeutorhynchus querceti
fruitborerlarvaCurculionidaeCeutorhynchus typhae
fruitborerlarvaCurculionidaeAmalorrhynchus melanarius
stemborerlarvaCurculionidaePoophagus sisymbrii
stemborerlarvaCurculionidaePoophagus hopffgarteni
root collarborerlarvaCurculionidaeCeutorhynchus scapularis
root collarborerlarvaCurculionidaeLixus myagri
flowergallCecidomyiidaeDasineura sisymbrii
leafdownErysiphalesErysiphe cruciferarum
leafdownPeronosporalesHyaloperonospora rorippae-islandicae
leafgallCurculionidaeCeutorhynchus chalibaeus
leafminerAgromyzidaeLiriomyza strigata
leafminerCurculionidaeCeutorhynchus minutus
leafminerDrosophilidaeScaptomyza flava
leafpustuleAlbuginales AlbiginaceaeAlbugo rorippae
leafpustuleBlastocladialesPhysoderma magnusianum
leafpustuleBlastocladialesPhysoderma vagans
root collargallCurculionidaeCeutorhynchus assimilis


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 25.iv.2021