organ | parasitic mode | stage | note | taxonomic group | parasite |
---|---|---|---|---|---|
leaf | vagrant | Miridae | Reuterista instabilis | ||
fruit | vagrant | doubtful | Pieridae | Euchloe tagis | |
leaf | vagrant | Pieridae | Euchloe bazae | ||
leaf | vagrant | Pieridae | Pieris brassicae | ||
leaf | vagrant | Pieridae | Pieris rapae | ||
leaf | miner | Chrysomelidae | Phyllotreta nemorum | ||
flower | hidden | Crambidae | Evergestis extimalis | ||
root | vagrant | Chrysomelidae | Phyllotreta striolata | ||
root | vagrant | Chrysomelidae | Phyllotreta consobrina | ||
leaf | hidden | Crambidae | Evergestis isatidalis | ||
fruit | gall | Cecidomyiidae | Asphondylia gennadii | ||
fruit | gall | Cecidomyiidae | Dasineura napi | ||
flower | gall | Cecidomyiidae | Contarinia nasturtii | ||
flower | gall | Cecidomyiidae | Gephyraulus raphanistri | ||
leaf | down | Erysiphales | Erysiphe cruciferarum | ||
leaf | down | Erysiphales | Golovinomyces orontii | ||
leaf | down | Erysiphales | Leveillula taurica | ||
leaf | gall | Aphididae | Brevicoryne brassicae | ||
leaf | gall | Curculionidae | Ceutorhynchus chalibaeus | ||
leaf | miner | Agromyzidae | Liriomyza brassicae | ||
leaf | miner | Agromyzidae | Liriomyza bryoniae | ||
leaf | miner | Agromyzidae | Liriomyza strigata | ||
leaf | miner | Agromyzidae | Liriomyza xanthocera | ||
leaf | miner | Curculionidae | Ceutorhynchus minutus | ||
leaf | miner | Drosophilidae | Scaptomyza flava | ||
leaf | miner | Plutellidae | Plutella xylostella | ||
leaf | pustule | Albuginales Albiginaceae | Albugo candida | ||
leaf | pustule | aecia | Pucciniales | Puccinia isiacae | |
stem | borer | Curculionidae | Ceutorhynchus pallidactylus | ||
root collar | gall | Curculionidae | Ceutorhynchus assimilis | ||
root collar | gall | Plasmodiophorales | Plasmodiophora brassicae | ||
root | gall | Meloidogynidae | Meloidogyne hapla | ||
leaf | vagrant | summer generation | Aphididae | Myzus persicae | |
leaf | down | Peronosporales | Hyaloperonospora erucae |
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.
Last modified 7.iv.2022