organ parasitic mode stage note taxonomic group parasite
leaf scale Aleyrodidae Aleyrodes lonicerae
leaf scale Aleyrodidae Aleurolobus wunni
stem scale Diaspididae Lepidosaphes ulmi
leaf down Erysiphales Erysiphe symphoricarpi
leaf gall spring generation Aphididae Rhopalomyzus lonicerae
leaf gall spring generation Aphididae Hyadaphis foeniculi
leaf miner Agromyzidae Aulagromyza cornigera
leaf miner Agromyzidae Aulagromyza flavoscutellata
leaf miner Agromyzidae Aulagromyza hendeliana
leaf miner Agromyzidae Aulagromyza luteoscutellata
leaf miner Coleophoridae Coleophora ahenella
leaf miner Coleophoridae Coleophora violacea
leaf miner Elachistidae Perittia herrichiella
leaf miner rarely Elachistidae Perittia obscurepunctella
leaf miner Gracillariidae Phyllonorycter emberizaepenella
leaf miner Gracillariidae Phyllonorycter trifasciella
leaf vagrant Eriophyidae Eriophyes brownei
leaf miner Agromyzidae Chromatomyia lonicerae
leaf vagrant summer generation Aphididae Aphis fabae
leaf vagrant Aphididae Macrosiphum euphorbiae
leaf gall summer generation rarely Aphididae Phorodon humuli
stem vagrant summer generation doubtful Aphididae Macrosiphum rosae
systemic vagrant summer generation Aphididae Aphis spiraephaga


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.


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 13.ii.2019