organ parasitic mode stage note taxonomic group parasite
flower borer Pterophoridae Amblyptilia acanthadactyla
flower borer larva Curculionidae Micrelus ericae
leaf scale Aleyrodidae Calluneyrodes callunae
leaf scale Aleyrodidae Tetralicia iberiaca
leaf scale Aleyrodidae Trialeurodes ericae
leaf scale rarely Aleyrodidae Aleurolobus olivinus
leaf scale Aleyrodidae Tetralicia ericae
leaf scale Diaspididae Aspidiotus nerii
stem scale Diaspididae Lepidosaphes ulmi
stem scale Diaspididae Adiscodiaspis ericicola
stem gall Eriococcidae Rhizococcus devoniensis
stem vagrant Psyllidae Strophingia harteni
leaf vagrant doubtful Psyllidae Strophingia ericae
stem vagrant Psyllidae Strophingia australis
stem vagrant Psyllidae Strophingia arborea
stem vagrant Psyllidae Strophingia proxima
stem vagrant Psyllidae Strophingia cinereae
stem vagrant Psyllidae Strophingia fallax
leaf miner Coleophoridae Coleophora ericarnella
stem vagrant Aphididae Aphis aurantii
stem vagrant Aphididae Aphis multiflorae
stem vagrant doubtful Aphididae Aphis arbuti
leaf vagrant summer generation Aphididae Aphis fabae
flower gall Cecidomyiidae Dasineura vagans
leaf bud gall Cecidomyiidae Wachtliella ericina
leaf bud gall Cecidomyiidae Dasineura elegans
leaf bud gall Cecidomyiidae Dasineura ericaescopariae
leaf bud gall Cecidomyiidae Dasineura zimmermanni
leaf bud gall Cecidomyiidae Myricomyia mediterranea
leaf down Erysiphales Erysiphe azaleae
leaf down Erysiphales Golovinomyces orontii
leaf gall Cecidomyiidae Dasineura broteri
leaf miner Coleophoridae Coleophora juncicolella
leaf miner Coleophoridae Coleophora pulchripennella
leaf miner Coleophoridae Coleophora pyrrhulipennella
leaf miner Gelechiidae Xenolechia aethiops
leaf pustule uredinia Pucciniales Thekopsora ericae
leaf vagrant Aphididae Ericaphis ericae
leaf vagrant Aphididae Ericaphis latifrons
stem gall Diaspididae Chionaspis salicis
stem gall Nanophyidae Ctenomeropsis nigra
leaf vagrant Aphididae Aphis spiraecola
systemic vagrant summer generation Aphididae Aphis spiraephaga

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 21.viii.2019