organ parasitic mode stage note taxonomic group parasite
leaf miner Curculionidae Orthochaetes setiger
flower borer Tephritidae Tephritis recurrens
flower borer Tephritidae Tephritis scorzonerae
flower borer Tephritidae Tephritis pulchra
flower borer Tephritidae Tephritis hurvitzi
flower gall Tephritidae Campiglossa producta
leaf leaf spot Capnodiales Ramularia inaequalis
stem miner Agromyzidae Ophiomyia heringi
root vagrant summer generation Aphididae Rectinasus buxtoni
leaf vagrant summer generation Aphididae Aphis fabae
systemic borer Anguinidae Ditylenchus dipsaci
fruit gall Cynipidae Aulacidea abdominalis
flower borer Tephritidae Tephritis carmen
flower borer Tephritidae Trupanea stellata
flower borer Tephritidae Orellia scorzonerae
flower gall Microbotryales Microbotryum scorzonerae
leaf down Erysiphales Golovinomyces cichoracearum
leaf down Erysiphales Golovinomyces orontii
leaf down Erysiphales Leveillula picridis
leaf down Peronosporales Novotelnova scorzonerae
leaf gall Cecidomyiidae Cystiphora scorzonerae
leaf miner Agromyzidae Liriomyza scorzonerae
leaf miner Tortricidae Cnephasia incertana
leaf miner Tortricidae Cnephasia stephensiana
leaf pustule Albuginales Pustula obtusata
leaf pustule aecia uredinia telia Pucciniales Puccinia jackyana
leaf pustule aecia uredinia telia Pucciniales Puccinia scorzonerae
stem gall Cynipidae Aulacidea scorzonerae
root gall Longidoridae Paralongidorus maximus
root gall Meloidogynidae Meloidogyne hapla
leaf vagrant doubtful Aphididae Brachycaudus tragopogonis
root vagrant Aphididae Trama troglodytes
leaf vagrant summer generation Aphididae Brachycaudus prunicola
leaf vagrant Aphididae Uroleucon scorzonerae
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.

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 29.iv.2019