organ parasitic mode stage note taxonomic group parasite
inquiline Eriophyidae Aceria maculifer
leaf vagrant Eriophyidae Calepitrimerus fagisylvaticus
stem vagrant Eriophyidae Cupacarus fagifoliae
leaf vagrant Eriophyidae Aculus breviseta
leaf vagrant Diptilomiopidae Rhyncaphytoptus fagifoliae
leaf vagrant Diptilomiopidae Rhyncaphytoptus gracillipes
inquiline Eriophyidae Epitrimerus fagi
leaf vagrant Eriophyidae Acaphyllisa fagi
leaf vagrant Diptilomiopidae Cheiracus ornatus
leaf leaf spot main Dothideales Pseudodidymella fagi
fruit borer Tortricidae Cydia amplana
leaf gall larva main Rhynchitidae Byctiscus betulae
leaf gall larva Rhynchitidae Deporaus betulae
leaf gall larva Attelabidae Apoderus coryli
stem borer Yponomeutidae Argyresthia semitestacella
leaf scale Aleyrodidae Pealius quercus
leaf scale Aleyrodidae Asterobemisia carpini
leaf vagrant Tenthredinidae Caliroa annulipes
leaf down Erysiphales Phyllactinia orbicularis
stem gall rarely Sesiidae Paranthrene tabaniformis
stem borer Sesiidae Synanthedon vespiformis
stem borer Sesiidae Synanthedon spuleri
leaf vagrant Tortricidae Lobesia reliquana
stem borer Psilidae Chyliza leptogaster
stem scale Coccidae Pulvinaria regalis
leaf scale Coccidae Pulvinaria hydrangeae
stem scale Coccidae Pulvinaria vitis
stem miner Nepticulidae Zimmermannia liebwerdella
leaf bud gall Cecidomyiidae Contarinia fagi
leaf down rarely Erysiphales Erysiphe alphitoides
leaf leaf spot Helotiales Cristulariella depraedans
leaf gall Aphididae Phyllaphis fagi
leaf gall Cecidomyiidae Hartigiola annulipes
leaf gall Cecidomyiidae Mikiola cristata
leaf gall Cecidomyiidae Mikiola orientalis
leaf gall Cecidomyiidae Phegomyia fagicola
leaf gall Diaporthales Apiognomonia errabunda
leaf gall Eriophyidae Acalitus plicans
leaf gall Eriophyidae Acalitus stenaspis
leaf gall Eriophyidae Aceria nervisequa
leaf gall Eriophyidae Eriophyes durmitorensis
leaf gall Eriophyidae Monochetus sulcatus
leaf miner Bucculatricidae Bucculatrix thoracella
leaf miner Coleophoridae Coleophora currucipennella
leaf miner Curculionidae Orchestes fagi
leaf miner Gracillariidae Caloptilia alchimiella
leaf miner Gracillariidae Caloptilia robustella
leaf miner Gracillariidae Parornix fagivora
leaf miner Gracillariidae Phyllonorycter maestingella
leaf miner Gracillariidae Phyllonorycter messaniella
leaf miner main Incurvariidae Incurvaria koerneriella
leaf miner Incurvariidae Incurvaria masculella
leaf miner Incurvariidae Incurvaria oehlmanniella
leaf miner Nepticulidae Stigmella hemargyrella
leaf miner Nepticulidae Stigmella tityrella
leaf miner Tortricidae Cnephasia asseclana
leaf miner Tortricidae Cnephasia incertana
leaf vagrant Diptilomiopidae Rhyncaphytoptus fagacis
stem gall Aphididae Lachnus pallipes
stem gall Eriococcidae Cryptococcus fagisuga
predator Cecidomyiidae Arthrocnodax gemmarum
inquiline Cecidomyiidae Macrolabis fagicola
stem scale Pseudococcidae Phenacoccus aceris
leaf gall Cecidomyiidae Mikiola fagi


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.


mod 6.x.2019