Plant Parasites of Europe

leafminers, galls and fungi

Sesleria caerulea

blue moor-grass

synonym: Sesleria albicans, calcarea, varia

organ parasitic mode stage note taxonomic group parasite
leaf vagrant Berytidae Berytinus clavipes
stem borer Chloropidae Camarota curvipennis
leaf vagrant Nymphalidae Chazara briseis
leaf vagrant doubtful Cicadellidae Mocydiopsis intermedia
leaf vagrant Cicadellidae Arocephalus languidus
leaf vagrant Cicadellidae Zyginidia franzi
leaf vagrant Cicadellidae Mocydiopsis longicauda
leaf vagrant Delphacidae Delphacinus mesomelas
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 Chromatomyia nigra
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


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 4.i.2022