Plant Parasites of Europe

leafminers, galls and fungi

Leopoldia comosa

tassel hyacinth

synonym: Muscari comosumpinardii

organ parasitic mode stage note taxonomic group parasite
root borer Syrphidae Merodon aberrans
leaf leaf spot Mycosphaerellaceae Septoria muscari
root borer Brachyceridae Brachycerus muricatus
root borer doubtful Syrphidae Merodon alexandri
root borer Syrphidae Merodon hurkmansi
root borer Syrphidae Merodon constans
leaf miner rarely Curculionidae Oprohinus consputus
flower gall Urocystidales Antherospora vaillantii
leaf leaf spot Blastocladiales Physoderma muscari
leaf leaf spot Georgefischeriales Gjaerumia muscari
leaf pustule aecia Pucciniales Melampsora allii-populina
leaf pustule aecia Pucciniales Puccinia sessilis
leaf pustule telia Pucciniales Puccinia liliacearum
leaf pustule telia Pucciniales Uromyces muscari
leaf stripe Urocystidales Urocystis muscaridis


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 29.i.2023