Plant Parasites of Europe

leafminers, galls and fungi

Quercus rubra

red oak

synonym: Quercus borealis F. Michx., maxima

organparasitic modestagenotetaxonomic groupparasite
leafvagrantTenthredinidaeCaliroa annulipes
leafvagrantTenthredinidaeCaliroa cinxia
leafvagrantTenthredinidaeMesoneura opaca
leafoviposition scarTenthredinidaePericlista lineolata
fruitborerTortricidaeCydia splendana
fruitborerTortricidaeCydia fagiglandana
leafgalllarvaRhynchitidaeDeporaus betulae
leafscaleAleyrodidaePealius quercus
stemgallAsterolecaniidaeAsterodiaspis variolosa
leaf budgallagamous generationCynipidaeAndricus inflator
leafgallagamous generationCynipidaeNeuroterus anthracinus
stemborermainSesiidaeSynanthedon vespiformis
stemborerPsilidaeChyliza leptogaster
leafleaf spotCapnodialesSeptoria spec.
leafleaf spotCapnodialesSphaerulina quercicola
stemscaleCoccidaeParthenolecanium rufulum
leafdownErysiphalesErysiphe alphitoides
leafdownErysiphalesPhyllactinia roboris
leafgallagamous generationCynipidaeAndricus gallaeurnaeformis
leafgallagamous generationCynipidaeNeuroterus numismalis
leafgallmainTaphrinalesTaphrina caerulescens
leafgallTriozidaeTrioza remota
leafminerBucculatricidaeBucculatrix ainsliella
leafminerBucculatricidaeBucculatrix ulmella
leafminerColeophoridaeColeophora currucipennella
leafminerColeophoridaeColeophora flavipennella
leafminerColeophoridaeColeophora kuehnella
leafminerCurculionidaeOrchestes quercus
leafminerEriocraniidaeDyseriocrania subpurpurella
leafminerGracillariidaePhyllonorycter sublautella
leafminerGracillariidaeAcrocercops brongniardella
leafminerNepticulidaeEctoedemia albifasciella
leafminerNepticulidaeEctoedemia subbimaculella
leafminerNepticulidaeStigmella basiguttella
leafminerNepticulidaeStigmella roborella
leafminerTenthredinidaeProfenusa pygmaea
leafminerTischeriidaeTischeria dodonaea
leafminerTischeriidaeTischeria ekebladella
leafminerTischeriidaeTischeria decidua
leafpustuleuredinia teliaPuccinialesCronartium quercuum
stemvagrantAphididaeLachnus roboris
leafvagrantAphididaeThelaxes dryophila
leafvagrantAphididaeMyzocallis walshii


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 3.v.2020