red oak

synonym: Quercus borealis F. Michx., maxima

organ parasitic mode stage note taxonomic group parasite
leaf gall larva Rhynchitidae Deporaus betulae
leaf scale Aleyrodidae Pealius quercus
stem gall Asterolecaniidae Asterodiaspis variolosa
leaf bud gall agamous generation Cynipidae Andricus inflator
leaf gall agamous generation Cynipidae Neuroterus anthracinus
stem borer main Sesiidae Synanthedon vespiformis
stem borer Psilidae Chyliza leptogaster
leaf leaf spot Capnodiales Septoria spec.
leaf leaf spot Capnodiales Sphaerulina quercicola
stem scale Coccidae Parthenolecanium rufulum
leaf down Erysiphales Erysiphe alphitoides
leaf down Erysiphales Phyllactinia roboris
leaf gall agamous generation Cynipidae Andricus gallaeurnaeformis
leaf gall agamous generation Cynipidae Neuroterus numismalis
leaf gall main Taphrinales Taphrina caerulescens
leaf gall Triozidae Trioza remota
leaf miner Bucculatricidae Bucculatrix ainsliella
leaf miner Bucculatricidae Bucculatrix ulmella
leaf miner Coleophoridae Coleophora currucipennella
leaf miner Coleophoridae Coleophora flavipennella
leaf miner Coleophoridae Coleophora kuehnella
leaf miner Curculionidae Orchestes quercus
leaf miner Eriocraniidae Dyseriocrania subpurpurella
leaf miner Gracillariidae Phyllonorycter sublautella
leaf miner Gracillariidae Acrocercops brongniardella
leaf miner Nepticulidae Ectoedemia albifasciella
leaf miner Nepticulidae Ectoedemia subbimaculella
leaf miner Nepticulidae Stigmella basiguttella
leaf miner Nepticulidae Stigmella roborella
leaf miner Tenthredinidae Profenusa pygmaea
leaf miner Tischeriidae Tischeria dodonaea
leaf miner Tischeriidae Tischeria ekebladella
leaf miner Tischeriidae Tischeria decidua
leaf pustule uredinia telia Pucciniales Cronartium quercuum
stem vagrant Aphididae Lachnus roboris
leaf vagrant Aphididae Thelaxes dryophila
leaf vagrant Aphididae Myzocallis walshii

Organ

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.

PARASITIC MODE

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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IMPORTANT

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 13.vii.2019