organ parasitic mode stage note taxonomic group parasite
leaf miner younger larva Tortricidae Cnephasia asseclana
leaf hidden older larva Tortricidae Cnephasia asseclana
leaf hidden Tortricidae Cnephasia incertana
leaf hidden Tortricidae Acleris aspersana
leaf miner doubtful Incurvariidae Alloclemensia mesospilella
leaf vagrant Tortricidae Acleris comariana
leaf vagrant Eriophyidae Liroella gei
flower borer Pterophoridae Geina didactyla
root collar borer Syrphidae Cheilosia pubera
unknown unknown larva Curculionidae Scleropterus serratus
stem borer larva Rhynchitidae Neocoenorrhinus germanicus
leaf scale Aleyrodidae Aleyrodes lonicerae
leaf vagrant summer generation Aphididae Aphis fabae fabae
leaf leaf spot Capnodiales Sphaerulina gei
leaf leaf spot Capnodiales Ramularia gei
leaf vagrant Aphididae Aulacorthum solani
leaf vagrant Aphididae Acyrthosiphon malvae malvae
flower gall Cecidomyiidae Geomyia alpina
flower gall Curculionidae Anthonomus rubi
flower vagrant main Aphididae Macrosiphum gei
leaf down Erysiphales Podosphaera aphanis
leaf down Peronosporales Peronospora gei
leaf gall Cecidomyiidae Contarinia gei
leaf gall Eriophyidae Cecidophyes nudus
leaf gall Eriophyidae Epitrimerus urbanus
leaf gall Taphrinales Taphrina potentillae
leaf miner Agromyzidae Agromyza idaeiana
leaf miner doubtful Coleophoridae Coleophora ahenella
leaf miner Coleophoridae Coleophora potentillae
leaf miner Incurvariidae Incurvaria praelatella
leaf miner Nepticulidae Stigmella aurella
leaf miner Nepticulidae Stigmella geimontani
leaf miner Nepticulidae Stigmella pretiosa
leaf miner Nepticulidae Stigmella splendidissimella
leaf miner Tenthredinidae Metallus lanceolatus
leaf pustule Chytridiales Synchytrium aureum
leaf pustule aecia telia Pucciniales Phragmidium circumvallatum
leaf pustule telia Puccinia tatrensis
leaf vagrant spring generation rarely Aphididae Sitobion fragariae
leaf vagrant Eriophyidae Epitrimerus rivalis
leaf vagrant Triozidae Bactericera bohemica
leaf vagrant doubtful Aphididae Acyrthosiphon malvae potha
leaf vagrant Aphididae Ovatomyzus boraginacearum
leaf vagrant Aphididae Myzus ornatus
leaf vagrant Aphididae Chaetosiphon janetscheki
leaf vagrant Aphididae Amphorophora gei

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 11.xi.2019