organ parasitic mode stage note taxonomic group parasite
fruit borer Gelechiidae Monochroa elongella
unknown borer larva Curculionidae Anthonomus brunnipennis
unknown borer larva Curculionidae Anthonomus germanicus
flower borer larva Curculionidae Anthonomus rubripes
leaf leaf spot Capnodiales Ramularia grevilleana
stem borer larva Rhynchitidae Neocoenorrhinus germanicus
root collar vagrant Aphididae Aphis subviridis
root collar vagrant Aphididae Aphis breviseta
leaf bud borer Sesiidae Tinthia myrmosaeformis
leaf vagrant doubtful Aphididae Acyrthosiphon malvae potha
leaf vagrant Aphididae Macrosiphum euphorbiae
leaf vagrant Aphididae Aulacorthum solani
leaf vagrant Aphididae Aphis spiraecola
root vagrant Aphididae Rhopalosiphoninus latysiphon
leaf vagrant spring generation rarely Aphididae Sitobion fragariae
systemic borer Anguinidae Ditylenchus dipsaci
flower gall Cecidomyiidae Dasineura potentillae
flower gall Curculionidae Anthonomus rubi
leaf bud gall Cecidomyiidae Guignonia potentillae
leaf down Erysiphales Podosphaera aphanis
leaf down Peronosporales Peronospora oblatispora
leaf down Peronosporales Peronospora potentillae
leaf down Peronosporales Peronospora potentillae-anserinae
leaf down Peronosporales Peronospora potentillae-reptantis
leaf down Peronosporales Peronospora potentillae-sterilis
leaf leaf spot Venturiales Venturia potentillae
leaf gall Cecidomyiidae Janetiella potentillogemmae
leaf gall Cynipidae Xestophanes potentillae
leaf gall Cynipidae Xestophanes szepligetii
leaf gall Eriophyidae Cecidophyes potentillae
leaf gall Eriophyidae Phyllocoptes parvulus
leaf gall Taphrinales Taphrina potentillae
leaf miner Agromyzidae Agromyza idaeiana
leaf miner Agromyzidae Agromyza sulfuriceps
leaf miner Buprestidae Trachys fragariae
leaf miner doubtful Coleophoridae Coleophora ahenella
leaf miner Coleophoridae Coleophora albicostella
leaf miner Coleophoridae Coleophora potentillae
leaf miner Coleophoridae Coleophora sergiella
leaf miner Coleophoridae Coleophora violacea
leaf miner doubtful Douglasiidae Tinagma perdicella
leaf miner Gelechiidae Sophronia humerella
leaf miner Incurvariidae Incurvaria praelatella
leaf miner Nepticulidae Stigmella aeneofasciella
leaf miner Nepticulidae Stigmella anomalella
leaf miner Nepticulidae Stigmella poterii
leaf miner Nepticulidae Stigmella splendidissimella
leaf miner Nepticulidae Stigmella stelviana
leaf miner Nepticulidae Stigmella thuringiaca
leaf miner Nepticulidae Stigmella tormentillella
leaf miner Nepticulidae Ectoedemia arcuatella
leaf miner Psychidae Apterona helicoidella
leaf miner Tenthredinidae Fenella arenariae
leaf miner Tenthredinidae Fenella nigrita
leaf oviposition scar doubtful Tenthredinidae Empria testaceipes
leaf pustule Blastocladiales Physoderma vagans
leaf pustule Chytridiales Synchytrium aureum
leaf pustule doubtful Chytridiales Synchytrium cupulatum
leaf pustule Chytridiales Synchytrium globosum
leaf pustule Chytridiales Synchytrium pilificum
leaf pustule Chytridiales Synchytrium potentillae
leaf pustule aecia uredinia telia Pucciniales Phragmidium fragariae
leaf pustule aecia uredinia telia Pucciniales Phragmidium potentillae
leaf pustule uredinia telia Pucciniales Frommeëlla mexicana
leaf pustule uredinia telia Pucciniales Frommeëlla tormentillae
leaf vagrant Aphididae Aphis tormentillae
leaf vagrant rarely Aphididae Aulacorthum speyeri
leaf vagrant Eriophyidae Epitrimerus jaceae
leaf vagrant Eriophyidae Aceria anserina
leaf vagrant Triozidae Bactericera lyrata
leaf vagrant Triozidae Bactericera reuteri
stem gall Asterolecaniidae Planchonia arabidis
stem gall doubtful Cynipidae Xestophanes brevitarsis
stem gall Cynipidae Diastrophus mayri
leaf vagrant Aphididae Myzus ascalonicus
leaf vagrant Aphididae Aphis gossypii
root collar vagrant Aphididae Aphis roepkei
root vagrant Aphididae Rhopalosiphoninus latysiphon
leaf vagrant rarely Aphididae Chaetosiphon fragaefolii
leaf vagrant Aphididae Chaetosiphon potentillae
leaf vagrant Aphididae Acyrthosiphon boreale
stem vagrant Aphididae Chaetosiphon alpestre
leaf vagrant Aphididae Chaetosiphon alpinum
root collar vagrant Aphididae Anthracosiphon hertae
leaf vagrant Aphididae Aulacorthum solani
stem vagrant Aphididae Chaetosiphon alpestre airolense


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 30.vii.2019