organ parasitic mode stage note taxonomic group parasite
leaf hidden Tortricidae Archips xylosteana
flower hidden Thripidae Frankliniella intonsa
leaf miner younger larva Tortricidae Cnephasia longana
flower hidden older larva Tortricidae Cnephasia longana
leaf miner younger larva Tortricidae Cnephasia asseclana
leaf hidden older larva Tortricidae Cnephasia asseclana
leaf hidden Tortricidae Cnephasia incertana
fruit borer younger larva Adelidae Adela violella
stem borer Gelechiidae Eulamprotes atrella
stem borer larva Apionidae Pseudostenapion simum
fruit borer larva Apionidae Pseudoperapion brevirostre
leaf scale Aleyrodidae Bemisia medinae
leaf scale Aleyrodidae Bemisia tabaci
leaf scale Aleyrodidae Bemisia reyesi
leaf vagrant summer generation Aphididae Aphis fabae fabae
root borer Sesiidae Chamaesphecia nigrifrons
leaf vagrant Aphididae Aulacorthum solani
leaf vagrant Aphididae Acyrthosiphon malvae malvae
leaf vagrant summer generation Aphididae Aphis frangulae
stem vagrant Aphididae Aphis craccivora
fruit gall Cecidomyiidae Asphondylia gennadii
flower gall Cecidomyiidae Contarinia hyperici
flower gall Tortricidae Lathronympha strigana
leaf bud gall Cecidomyiidae Zeuxidiplosis giardi
leaf bud gall Cecidomyiidae Dasineura hyperici
leaf bud gall Cecidomyiidae Dasineura serotina
leaf down Erysiphales Erysiphe hyperici
leaf down Erysiphales Leveillula taurica
leaf gall Cecidomyiidae Macrolabis marteli
leaf miner Gracillariidae Caloptilia aurantiaca
leaf miner Gracillariidae Euspilapteryx auroguttella
leaf miner Lyonetiidae Leucoptera lustratella
leaf miner Nepticulidae Fomoria deschkai
leaf miner Nepticulidae Fomoria empetrifolii
leaf miner Nepticulidae Fomoria eriki
leaf miner Nepticulidae Fomoria luisae
leaf miner Nepticulidae Fomoria septembrella
leaf miner Nepticulidae Fomoria variicapitella
leaf pustule Chytridiales Synchytrium aureum
leaf pustule aecia telia Pucciniales Melampsora hypericorum
leaf pustule uredinia Pucciniales Uredo hyperici-humifusi
leaf vagrant summer generation Aphididae Aphis fabae
leaf vagrant Eriophyidae Aculus hygrophilus
leaf vagrant Eriophyidae Aculus hyperici
stem gall Asterolecaniidae Planchonia arabidis
root collar vagrant Aphididae Aphis chloris
root gall Cecidomyiidae Geocrypta braueri
leaf vagrant summer generation Aphididae Aphis frangulae frangulae
leaf vagrant Aphididae Aphis gossypii

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 2.xii.2019