Plant Parasites of Europe

leafminers, galls and fungi

Poa nemoralis

wood meadowgrass

synonym: Poa firmula

organ parasitic mode stage note taxonomic group parasite
flower hidden Thripidae Chirothrips ruptipennis
leaf leaf spot Phyllachoraceae Telimenella gangraena
leaf leaf spot Mycosphaerellaceae Septoria macropoda
leaf leaf spot Mycosphaerellaceae Graminopassalora graminis
leaf leaf spot Mycosphaerellaceae Ramularia pusilla
leaf leaf spot Ascomycota incertae sedis Ramulaspera holci-lanati
seeds vagrant Lygaeidae Plinthisus brevipennis
leaf vagrant Noctuidae Pachetra sagittigera
leaf vagrant Noctuidae Xestia xanthographa
leaf vagrant Noctuidae Mythimna turca
leaf vagrant Noctuidae Apamea scolopacina
stem borer Chloropidae Cetema cereris
stem borer Chloropidae Cetema elongatum
stem borer Anthomyzidae Stiphrosoma sabulosum
stem borer Anthomyzidae Stiphrosoma laetum
leaf vagrant doubtful Cicadellidae Hardya tenuis
leaf vagrant Delphacidae Eurysa lineata
leaf vagrant Delphacidae Eurysa brunnea
leaf vagrant Delphacidae Stiroma affinis
leaf vagrant doubtful Delphacidae Eurysella brunnea
flower hidden Thripidae Chirothrips ambulans
stem borer Chloropidae Conioscinella frontella
stem borer Chloropidae Conioscinella livida
stem borer Chloropidae Conioscinella obscuripila
leaf pustule uredinia telia Pucciniales Puccinia coronata
flower gall Anguinidae Anguina agrostis
flower gall Tilletiales Tilletia poae
leaf down Erysiphales Erysiphaceae Blumeria graminis
leaf down Peronosporales Sclerospora graminicola
leaf gall Tilletiales Tilletia transiliensis
leaf miner Agromyzidae Cerodontha atronitens
leaf miner Agromyzidae Cerodontha muscina
leaf miner Agromyzidae Liriomyza flaveola
leaf miner Elachistidae Elachista apicipunctella
leaf miner Elachistidae Elachista bedellella
leaf miner Elachistidae Elachista bifasciella
leaf miner Elachistidae Elachista exactella
leaf pustule uredinia telia Pucciniales Puccinia graminis
leaf pustule uredinia telia Pucciniales Puccinia petasites-poarum
leaf pustule uredinia telia Pucciniales Puccinia poae-aposeridis
leaf pustule uredinia telia Pucciniales Puccinia poae-nemoralis
leaf pustule uredinia telia Pucciniales Puccinia poarum
leaf pustule uredinia telia Pucciniales Uromyces poae
leaf stripe uredinia telia Pucciniales Puccinia pseudostriiformis
leaf stripe Tilletiales Tilletia sterilis
leaf stripe Urocystidales Urocystis poae
leaf stripe Ustilaginales Ustilago striiformis
stem down Hypocreales Epichloe typhina
stem down Hypocreales Epichloe poae
stem gall Cecidomyiidae Mayetiola destructor
stem gall Cecidomyiidae Mayetiola graminis
stem gall Eurytomidae Tetramesa poae
root collar gall Cecidomyiidae Mayetiola joannisi
root collar gall Cecidomyiidae Mayetiola radicifica
leaf vagrant Aphididae Sitobion avenae


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 26.ix.2023