organ parasitic mode stage note taxonomic group parasite
leaf bud borer Yponomeutidae Argyresthia submontana
leaf hidden Yponomeutidae Yponomeuta padella
leaf vagrant Ypsolophidae Ypsolopha scabrella
leaf hidden Gelechiidae Recurvaria leucatella
leaf hidden Gelechiidae Teleiodes vulgella
leaf vagrant Tenthredinidae Pristiphora insularis
leaf vagrant Tenthredinidae Pristiphora condei
leaf hidden Tortricidae Pandemis corylana
leaf leaf spot Pleosporales Ascochyta amelanchieris
leaf miner Rhynchitidae Neocoenorrhinus pauxillus
stem scale Diaspididae Epidiaspis leperii
leaf bud gall doubtful Eriophyidae Eriophyes calycobius
stem scale Coccidae Pulvinaria regalis
leaf scale Coccidae Pulvinaria hydrangeae
fruit borer Tephritidae Anomoia purmunda
leaf bud gall Eriophyidae Eriophyes amelancheus
leaf down Erysiphales Phyllactinia mali
leaf down Erysiphales Podosphaera amelanchieris
leaf gall Aphididae Aphis pomi
leaf gall Aphididae Dysaphis parasorbi
leaf gall Eriophyidae Eriophyes aroniae
leaf gall Eriophyidae Eriophyes pyri
leaf gall Psyllidae Cacopsylla breviantennata
leaf miner Bucculatricidae Bucculatrix bechsteinella
leaf miner Coleophoridae Coleophora hemerobiella
leaf miner Coleophoridae Coleophora kroneella
leaf miner Coleophoridae Coleophora serratella
leaf miner Coleophoridae Coleophora trigeminella
leaf miner Curculionidae Rhamphus oxyacanthae
leaf miner Gelechiidae Recurvaria nanella
leaf miner Gracillariidae Callisto pfaffenzelleri
leaf miner Gracillariidae Parornix anglicella
leaf miner Gracillariidae Parornix anguliferella
leaf miner Gracillariidae Parornix ornatella
leaf miner Gracillariidae Phyllonorycter deschkai
leaf miner Gracillariidae Phyllonorycter mespilella
leaf miner Lyonetiidae Leucoptera malifoliella
leaf miner Lyonetiidae Lyonetia clerkella
leaf miner Nepticulidae Stigmella hybnerella
leaf miner doubtful Nepticulidae Stigmella magdalenae
leaf miner Nepticulidae Stigmella mespilicola
leaf miner Nepticulidae Stigmella oxyacanthella
leaf miner Nepticulidae Stigmella sorbi
leaf pustule aecia Pucciniales Gymnosporangium amelanchieris
leaf pustule aecia Pucciniales Gymnosporangium clavariiforme
leaf pustule uredinia telia Pucciniales Ochropsora ariae
leaf vagrant spring generation Aphididae Rhopalosiphum oxyacanthae
stem gall summer generation Aphididae Eriosoma lanigerum
stem gall Santalaceae Viscum album
leaf vagrant summer generation Aphididae Aphis fabae


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 5.ii.2020