organ | parasitic mode | stage | note | taxonomic group | parasite |
---|---|---|---|---|---|
leaf | leaf spot | Didymellaceae | Ascochyta sesleriae | ||
leaf | vagrant | Miridae | Dimorphocoris marci | ||
leaf | vagrant | Berytidae | Berytinus clavipes | ||
stem | borer | Chloropidae | Camarota curvipennis | ||
leaf | vagrant | Nymphalidae | Chazara briseis | ||
leaf | vagrant | Nymphalidae | Erebia aethiops | ||
leaf | vagrant | doubtful | Cicadellidae | Mocydiopsis intermedia | |
leaf | vagrant | Cicadellidae | Zyginidia franzi | ||
leaf | vagrant | Cicadellidae | Nanosius chloroticus | ||
leaf | vagrant | Cicadellidae | Mocydiopsis longicauda | ||
leaf | vagrant | Delphacidae | Delphacinus mesomelas | ||
leaf | vagrant | Cicadellidae | Arocephalus languidus | ||
leaf | vagrant | Cicadellidae | Zyginidia mocsaryi | ||
leaf | vagrant | Delphacidae | Chlorionidea flava | ||
root | vagrant | larva | Cixiidae | Tachycixius pilosus | |
root | borer | Chrysomelidae | Chaetocnema hortensis | ||
leaf | stripe | Urocystidales | Urocystis mayorii | ||
leaf | vagrant | Aphididae | Sitobion avenae | ||
fruit | gall | Hypocreales | Claviceps purpurea | ||
flower | gall | Eriophyidae | Aceria cornuta | ||
leaf | down | Erysiphales Erysiphaceae | Blumeria graminis | ||
leaf | leaf spot | Phyllachorales | Phyllachora graminis | ||
leaf | gall | Eriophyidae | Abacarus hystrix | ||
leaf | gall | Eriophyidae | Aceria tenuis | ||
leaf | miner | Agromyzidae | Cerodontha elbergi | ||
leaf | miner | Agromyzidae | Chromatomyia nigra | ||
leaf | miner | Agromyzidae | Chromatomyia opacella | ||
leaf | miner | Elachistidae | Elachista cinereopunctella | ||
leaf | miner | Elachistidae | Elachista dimicatella | ||
leaf | miner | Elachistidae | Elachista heinemanni | ||
leaf | pustule | uredinia telia | Pucciniales | Puccinia coronata | |
leaf | pustule | uredinia telia | Pucciniales | Puccinia graminis | |
leaf | pustule | uredinia telia | Pucciniales | Puccinia sesleriae | |
leaf | stripe | Tilletiales | Tilletia sesleriae | ||
leaf | stripe | Ustilaginales | Ustilago striiformis | ||
root | vagrant | summer generation | Aphididae | Anoecia corni |
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.