irish fleabane

organ parasitic mode stage note taxonomic group parasite
flower borer Pterophoridae Hellinsia inulae
stem miner Agromyzidae Ophiomyia io
flower borer Cecidomyiidae Jaapiella inulicola
flower gall doubtful Tephritidae Myopites eximia
flower gall doubtful Tephritidae Myopites inulaedyssentericae
leaf down Erysiphales Golovinomyces inulae
leaf gall Aphididae Brachycaudus salicinae
leaf gall Cecidomyiidae Contarinia inulicola
leaf miner Agromyzidae Phytomyza kyffhusana
leaf miner Choreutidae Tebenna micalis
leaf miner Coleophoridae Coleophora conyzae
leaf miner Glyphipterigidae Digitivalva valeriella
leaf pustule Albuginales Pustula obtusata
leaf pustule uredinia telia Pucciniales Coleosporium inulae
stem gall Cecidomyiidae Acodiplosis inulae
root collar gall Cecidomyiidae Inulomyia subterranea
stem vagrant Aphididae Uroleucon inulicola


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.


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.


mod 29.ix.2018