Plant Parasites of Europe

leafminers, galls and fungi

Stellaria graminea

lesser stitchwort

organ parasitic mode stage note taxonomic group parasite
leaf vagrant Geometridae Euphyia biangulata
leaf vagrant Thripidae Tmetothrips subapterus
leaf vagrant Chrysomelidae Cassida flaveola
leaf vagrant Chrysomelidae Galeruca tanaceti
leaf hidden Gelechiidae Caryocolum cassella
flower hidden Thripidae Thrips atratus
stem gall Gelechiidae Caryocolum fraternella
flower borer Cecidomyiidae Dasineura on Stellaria graminea
fruit vagrant Coleophoridae Coleophora striatipennella
flower gall Microbotryales Microbotryum stellariae
flower gall Urocystidales Thecaphora melandrii
leaf bud gall Cecidomyiidae Ametrodiplosis duclosii
leaf down Peronosporales Peronospora parva
leaf gall Aphididae Brachycolus stellariae
leaf gall Eriophyidae Cecidophyopsis atrichus
leaf miner Agromyzidae Amauromyza flavifrons
leaf miner Coleophoridae Coleophora chalcogrammella
leaf miner Drosophilidae Scaptomyza graminum
leaf miner Gelechiidae Caryocolum junctella
leaf miner doubtful Gelechiidae Caryocolum kroesmanniella
leaf miner Gelechiidae Caryocolum petrophila
leaf pustule uredinia telia Pucciniales Melampsorella caryophyllacearum
leaf pustule telia Pucciniales Puccinia arenariae
stem gall Psyllidae Aphalara affinis
leaf leaf spot Capnodiales Ramularia episphaeria
stem vagrant Aphididae Macrosiphum stellariae


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 9.vii.2022