organ | parasitic mode | stage | note | taxonomic group | parasite |
---|---|---|---|---|---|
root | film | Pythiaceae | Pythium aphanidermatum | ||
root | film | Ceratobasidiaceae | Rhizoctonia solani | ||
systemic | down | Sclerotiniaceae | Botrytis cinerea | ||
leaf | leaf spot | Didymellaceae | Ascochyta matthiolae | ||
leaf | leaf spot | Mycosphaerellaceae | Neopseudocercosporella brassicae | ||
fruit | leaf spot | Leptospaeriaceae | Plenodomus lingam | ||
leaf | leaf spot | Mycosphaerellaceae | Septoria armoraciae | ||
root | film | Plectosphaerellaceae | Verticillium dahliae | ||
systemic | pustule | Sclerotiniaceae | Sclerotinia sclerotiorum | ||
leaf | leaf spot | Mycosphaerellaceae | Cercospora armoraciae | ||
leaf | vagrant | Pentatomidae | Eurydema oleracea | ||
fruit | vagrant | Pieridae | Anthocharis cardamines | ||
leaf | vagrant | Pieridae | Pieris brassicae | ||
leaf | vagrant | Pieridae | Pieris rapae | ||
leaf | vagrant | Pieridae | Pieris napi | ||
leaf | miner | Chrysomelidae | Phyllotreta nemorum | ||
stem | borer | Curculionidae | Ceutorhynchus sulcicollis | ||
stem | borer | Curculionidae | Aulacobaris coerulescens | ||
unknown | unknown | Curculionidae | Aulacobaris janthina | ||
root | vagrant | Chrysomelidae | Phyllotreta atra | ||
leaf | vagrant | Chrysomelidae | Phaedon laevigatus | ||
leaf | vagrant | Chrysomelidae | Phaedon cochleariae | ||
leaf | vagrant | Chrysomelidae | Phaedon armoraciae | ||
root | vagrant | Chrysomelidae | Phyllotreta undulata | ||
root | vagrant | Chrysomelidae | Phyllotreta atra | ||
root | vagrant | Chrysomelidae | Phyllotreta cruciferae | ||
root | vagrant | Chrysomelidae | Phyllotreta astrachanica | ||
root | vagrant | Chrysomelidae | Phyllotreta punctulata | ||
root | vagrant | Chrysomelidae | Phyllotreta nigripes | ||
root | vagrant | Chrysomelidae | Phyllotreta diademata | ||
root | vagrant | Chrysomelidae | Phyllotreta consobrina | ||
leaf | vagrant | Tenthredinidae | Athalia rosae | ||
leaf | hidden | Crambidae | Evergestis pallidata | ||
leaf | leaf spot | Capnodiales | Ramularia armoraciae | ||
leaf | gall | Aphrophoridae | Philaenus spumarius | ||
fruit | borer | larva | Curculionidae | Ceutorhynchus cochleariae | |
stem | borer | larva | Curculionidae | Ceutorhynchus ignitus | |
root collar | borer | larva | Curculionidae | Lixus albomarginatus | |
flower | vagrant | Aphididae | Smiela fusca | ||
leaf | miner | Agromyzidae | Chromatomyia horticola | ||
systemic | borer | Anguinidae | Ditylenchus dipsaci | ||
flower | gall | Cecidomyiidae | Contarinia nasturtii | ||
flower | gall | Cecidomyiidae | Dasineura armoraciae | ||
leaf | down | Erysiphales | Erysiphe cruciferarum | ||
leaf | down | Peronosporales | Hyaloperonospora cochleariae | ||
leaf | gall | Curculionidae | Ceutorhynchus chalibaeus | ||
leaf | miner | Agromyzidae | Liriomyza bryoniae | ||
leaf | miner | Agromyzidae | Liriomyza xanthocera | ||
leaf | miner | Agromyzidae | Phytomyza rufipes | ||
leaf | miner | Curculionidae | Ceutorhynchus minutus | ||
leaf | miner | Drosophilidae | Scaptomyza flava | ||
leaf | miner | Plutellidae | Plutella xylostella | ||
leaf | pustule | Albuginales Albiginaceae | Albugo candida | ||
stem | borer | Chrysomelidae | Phyllotreta armoraciae | ||
stem | borer | Curculionidae | Aulacobaris lepidii | ||
stem | gall | Curculionidae | Ceutorhynchus griseus | ||
root collar | gall | Curculionidae | Ceutorhynchus assimilis | ||
root collar | gall | Plasmodiophorales | Plasmodiophora brassicae | ||
leaf | vagrant | summer generation | Aphididae | Aphis nasturtii |
Organ
the part of the plant that most conspicuously is hit by the parasiteall 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.
PARASITIC MODE
borer: larva living internally, almost no outwards signsdown: 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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IMPORTANT
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.