Plant Parasites of Europe

leafminers, galls and fungi

genus Aesculus

organparasitic modestagenotetaxonomic groupparasite
leafvagrantTetranychidaeEotetranychus pruni
leafvagrantTetranychidaePanonychus ulmi
leafvagrantThripidaeDendrothrips degeeri
stemvagrantFlatidaeMetcalfa pruinosa
leaf budhiddenThripidaeTaeniothrips inconsequens
stemborerXiphydryiidaeXiphydria camelus
stemscaleEriococcidaeAcanthococcus roboris
stemscaleEriococcidaeAcanthococcus aceris
stemscaleDiaspididaePseudaulacaspis pentagona
stemscaleDiaspididaeDiaspidiotus ostreaeformis
leafhiddenTortricidaeCnephasia incertana
leafmineryounger larvaTortricidaeCnephasia stephensiana
leafhiddenolder larvaTortricidaeCnephasia stephensiana
leafmineryounger larvaTortricidaeCnephasia asseclana
leafhiddenolder larvaTortricidaeCnephasia asseclana
stemborerYponomeutidaeArgyresthia glaucinella
leafscaleAleyrodidaePealius quercus
stemscalePseudococcidaePhenacoccus aceris
stemscaleDiaspididaeLepidosaphes ulmi
stemscaleDiaspididaeEpidiaspis leperii
stemborerSesiidaeSynanthedon vespiformis
stemscaleCoccidaePulvinaria regalis
leafscaleCoccidaePulvinaria hydrangeae
flowergallrarelyAphididaePeriphyllus testudinaceus
leafdownrarelyErysiphalesSawadaea bicornis
leafdownrarelyErysiphalesErysiphe alphitoides
leafdownErysiphalesErysiphe flexuosa
leafleaf spotBotryosphaerialesPhyllosticta paviae
leafgallEriophyidaeAculus hippocastani
leafminerBucculatricidaeBucculatrix thoracella
leafminerGracillariidaeCameraria ohridella
leafvagrantsummer generationAphididaeAphis fabae
leafvagrantEriophyidaeShevtchenkella carinata
stemgallPseudomonadalesPseudomonas syringae pv. aesculi
stemgallRhizobialesAgrobacterium tumefaciens
stemgallSantalaceaeViscum album
leafvagrantsummer generationAphididaeAphis nasturtii
leafvagrantrarelyAphididaePeriphyllus testudinaceus
stemscaleCoccidaeEulecanium tiliae
stemscaleCoccidaeParthenolecanium corni


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 15.ix.2020