european michaelmas-daisy

synonym: Aster amelloides

organ parasitic mode stage note taxonomic group parasite
vagrant Aphididae Uroleucon pachysiphon
fruit vagrant Coleophoridae Coleophora obscenella
fruit vagrant Coleophoridae Coleophora asteris
flower borer Tephritidae Campiglossa loewiana
flower borer Tephritidae Trupanea stellata
leaf leaf spot Entylomatales Entyloma bellidiastri
leaf miner Agromyzidae Liriomyza asteris
leaf miner Agromyzidae Liriomyza strigata
leaf miner Agromyzidae Nemorimyza posticata
leaf miner Agromyzidae Ophiomyia maura
leaf miner Agromyzidae Phytomyza erigerophila
leaf miner Coleophoridae Coleophora amellivora
leaf miner Coleophoridae Coleophora autumnella
leaf miner Coleophoridae Coleophora conspicuella
leaf miner Coleophoridae Coleophora ramosella
leaf miner Coleophoridae Coleophora rectilineella
leaf miner Gelechiidae Gnorimoschema steueri
leaf miner Gelechiidae Scrobipalpula diffluella
leaf miner Gelechiidae Scrobipalpula psilella
leaf miner Gracillariidae Aristaea pavoniella
leaf miner Tortricidae Thiodia torridana
leaf pustule telia Pucciniales Puccinia asteris
leaf vagrant summer generation Aphididae Brachycaudus helichrysi


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.