Plant Parasites of Europe

leafminers, galls and fungi

Glyceria maxima

reed sweet-grass

synonym: Glyceria aquatica, spectbilis; Poa aquatica

organ parasitic mode stage note taxonomic group parasite
leaf leaf spot Mycosphaerellaceae Graminopassalora graminis
leaf leaf spot Capnodiales Ramularia collo-cygni
leaf vagrant Pentatomidae Eysarcoris ventralis
leaf vagrant Lygaeidae Ischnodemus sabuleti
stem scale Eriococcidae Greenisca glyceriae
leaf vagrant Erebidae Laelia coenosa
leaf miner Agromyzidae Agromyza hendeli
stem borer Noctuidae Hydraecia micacea
leaf miner>borer Noctuidae Helotropha leucostigma
stem borer Noctuidae Phragmatiphila nexa
leaf vagrant Noctuidae Xylena vetusta
leaf vagrant rarely Noctuidae Lateroligia ophiogramma
stem borer Noctuidae Oligia fasciuncula
stem borer Noctuidae Mesoligia furuncula
flower borer Chloropidae Calamoncosis glyceriae
leaf vagrant Noctuidae Simyra albovenosa
stem borer Chloropidae Lasiosina herpini
leaf vagrant Noctuidae Deltote bankiana
leaf miner Crambidae Nymphula nitidulata
stem borer doubtful Crambidae Schoenobius gigantella
stem borer Crambidae Donacaula mucronella
stem borer Anthomyzidae Anagnota bicolor
stem borer Anthomyzidae Stiphrosoma cingulatum
stem borer Periscelidae Stenomicra cogani
leaf vagrant Cicadellidae Ebarrius discolor
leaf vagrant Delphacidae Struebingianella lugubrina
leaf vagrant Delphacidae Stiroma bicarinata
leaf vagrant doubtful Cicadellidae Cicadula placida
stem borer larva Curculionidae Bagous elegans
unknown unknown Curculionidae Bagous majzlani
leaf vagrant Thripidae Baliothrips kroli
root borer Chrysomelidae Chaetocnema aridula
root scale Chrysomelidae Donacia semicuprea
leaf vagrant Chrysomelidae Oulema septentrionis
leaf vagrant Tenthredinidae Brachythops flavens
stem borer Crambidae Chilo phragmitella
leaf hidden Tortricidae Clepsis spectrana
leaf borer Phytoptidae Novophytoptus glyceriae
root collar borer larva Curculionidae Notaris acridulus
leaf miner>borer Glyphipterigidae Orthotelia sparganella
leaf miner>borer Noctuidae Sedina buettneri
leaf down Erysiphales Erysiphaceae Blumeria graminis
leaf miner doubtful Agromyzidae Agromyza albipennis
leaf miner Agromyzidae Agromyza alunulata
leaf miner Agromyzidae Agromyza lucida
leaf miner Agromyzidae Agromyza nigripes
leaf miner Agromyzidae Chromatomyia nigra
leaf miner Crambidae Donacaula forficella
leaf miner Elachistidae Elachista poae
leaf miner Ephydridae Hydrellia thoracica
leaf pustule Cantharellales Ceratorhiza rhizodes
leaf pustule uredinia telia Pucciniales Puccinia coronata
leaf stripe Ustilaginales Ustilago davisii
leaf stripe Ustilaginales Ustilago filiformis
stem gall Cecidomyiidae Octodiplosis glyceriae
leaf vagrant Aphididae Sipha glyceriae


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 27.viii.2022