organ parasitic mode stage note taxonomic group parasite
root collar borer larva Curculionidae Bagous diglyptus
root collar borer larva Apionidae Osellaeus bonvouloirii
leaf vagrant summer generation Aphididae Rhopalosiphum nymphaeae
root vagrant summer generation Aphididae Aphis sambuci
leaf vagrant Triozidae Trioza saxifragae
leaf vagrant summer generation Aphididae Nasonovia ribisnigri
leaf gall Triozidae Trioza rotundata
stem vagrant Aphididae Aphis craccivora
leaf vagrant summer generation Aphididae Aphis fabae fabae
leaf vagrant summer generation Aphididae Aphis fabae
systemic borer Anguinidae Ditylenchus dipsaci
flower gall Cecidomyiidae Dasineura saxifragae
flower gall Eriophyidae Aculus kochi
leaf down Erysiphales Podosphaera alpina
leaf down Erysiphales Podosphaera macrospora
leaf down Exobasidiales Arcticomyces warmingii
leaf down Peronosporales Peronospora minima
leaf down Peronosporales Peronospora saxifragae
leaf gall Triozidae Trioza remaudierei
leaf miner Agromyzidae Chromatomyia aizoon
leaf miner Agromyzidae Chromatomyia saxifragae
leaf miner Agromyzidae Liriomyza clarae
leaf miner Curculionidae Otiorhynchus rugifrons
leaf miner Incurvariidae Alloclemensia mesospilella
leaf miner Pterophoridae Stenoptilia millieridactylus
leaf miner doubtful Syrphidae Cheilosia semifasciata
leaf miner Tortricidae Cnephasia asseclana
leaf miner Tortricidae Cnephasia ecullyana
leaf miner Tortricidae Cnephasia incertana
leaf miner Tortricidae Cnephasia stephensiana
leaf miner Yponomeutidae Kessleria albescens
leaf miner Yponomeutidae Kessleria alpicella
leaf miner Yponomeutidae Kessleria alternans
leaf miner Yponomeutidae Kessleria inexpectata
leaf miner Yponomeutidae Kessleria insubrica
leaf miner Yponomeutidae Kessleria klimeschi
leaf miner Yponomeutidae Kessleria saxifragae
leaf miner doubtful Yponomeutidae Kessleria wehrlii
leaf miner Yponomeutidae Kessleria zimmermanni
leaf pustule Chytridiales Synchytrium rubrocinctum
leaf pustule Chytridiales Synchytrium saxifragae
leaf pustule aecia Pucciniales Puccinia cynodontis
leaf pustule aecia Pucciniales Caeoma cernuae
leaf pustule aecia uredinia telia Pucciniales Melampsora dupiasii
leaf pustule aecia uredinia telia Pucciniales Melampsora durrieui
leaf pustule aecia uredinia telia Pucciniales Melampsora vernalis
leaf pustule aecia Pucciniales Melampsora arctica
leaf pustule aecia Pucciniales Melampsora epitea
leaf pustule aecia Pucciniales Melampsora reticulatae
leaf pustule uredinia telia Pucciniales Melampsora hirculi
leaf pustule telia Pucciniales Puccinia fischeri
leaf pustule telia Pucciniales Puccinia huteri
leaf pustule telia Pucciniales Puccinia joerstadii
leaf pustule telia Pucciniales Puccinia jueliana
leaf pustule telia Pucciniales Puccinia pazschkei
leaf pustule telia Pucciniales Puccinia saxifragae
leaf pustule telia Pucciniales Puccinia saxifragae-gei
leaf vagrant summer generation Aphididae Brachycaudus helichrysi
leaf vagrant Eriophyidae Aceria saxifragae
leaf vagrant doubtful Aphididae Nasonovia saxifragae
leaf vagrant summer generation Aphididae Nasonovia vannesii
leaf vagrant Aphididae Nasonovia dasyphylli

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.

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 12.v.2019