synonym: Potentilla tormentilla

organ parasitic mode stage note taxonomic group parasite
leaf hidden Tortricidae Philedone gerningana
leaf vagrant Tortricidae Acleris caledoniana
leaf hidden Tortricidae Acleris aspersana
unknown borer larva Curculionidae Anthonomus brunnipennis
leaf leaf spot Capnodiales Ramularia grevilleana
leaf down Erysiphales Podosphaera aphanis
leaf gall Eriophyidae Phyllocoptes parvulus
leaf gall Taphrinales Taphrina potentillae
leaf miner Agromyzidae Agromyza idaeiana
leaf miner Agromyzidae Agromyza sulfuriceps
leaf miner Nepticulidae Ectoedemia arcuatella
leaf miner Nepticulidae Stigmella aeneofasciella
leaf miner Nepticulidae Stigmella poterii
leaf miner Nepticulidae Stigmella tormentillella
leaf miner Tenthredinidae Fenella nigrita
leaf pustule Chytridiales Synchytrium pilificum
leaf pustule aecia uredinia telia Pucciniales Phragmidium potentillae
leaf pustule uredinia telia Pucciniales Frommeëlla tormentillae
leaf vagrant Aphididae Aphis tormentillae
leaf vagrant Eriophyidae Epitrimerus jaceae
stem gall Asterolecaniidae Planchonia arabidis
stem gall Cynipidae Xestophanes brevitarsis


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 17.xi.2019