synonym: Hypochoeris radicata; Seriola caespitosa

organ parasitic mode stage note taxonomic group parasite
flower hidden Elachistidae Depressaria badiella
leaf miner younger larva Tortricidae Cnephasia longana
flower hidden older larva Tortricidae Cnephasia longana
leaf bud hidden Tortricidae Cnephasia conspersana
leaf hidden Tortricidae Cnephasia pasiuana
flower borer larva Curculionidae Glocianus distinctus
leaf miner Curculionidae Orthochaetes setiger
leaf leaf spot doubtful Entylomatales Entyloma hypochaeridis
leaf down Peronosporales Bremia lactucae
leaf leaf spot Capnodiales Ramularia inaequalis
stem borer Agromyzidae Melanagromyza oligophaga
stem miner Agromyzidae Ophiomyia heringi
root collar vagrant doubtful Psyllidae Craspedolepta sonchi
leaf vagrant summer generation Aphididae Aphis fabae fabae
systemic borer Anguinidae Ditylenchus dipsaci
flower borer Tephritidae Ensina sonchi
flower gall Cecidomyiidae Contarinia hypochoeridis
flower gall Cecidomyiidae Jaapiella hypochoeridis
flower gall Tephritidae Campiglossa producta
flower gall rarely Tephritidae Tephritis formosa
flower gall Tephritidae Tephritis vespertina
leaf borer Agromyzidae Ophiomyia beckeri
leaf down Erysiphales Golovinomyces cichoracearum
leaf down Erysiphales Podosphaera erigerontis-canadensis
leaf leaf spot Entylomatales Entyloma maireanum
leaf gall Agromyzidae Phytomyza cecidonomia
leaf gall Aphididae Aphis hypochoeridis
leaf gall Cynipidae Aulacidea andrei
leaf gall Eriophyidae Aceria hypochoerina
leaf gall Taphrinales Protomyces kriegerianus
leaf miner Agromyzidae Liriomyza strigata
leaf miner Agromyzidae Phytomyza marginella
leaf miner Curculionidae Orthochaetes insignis
leaf miner Drosophilidae Scaptomyza flava
leaf pustule uredinia telia Pucciniales Puccinia hypochaeridis
leaf vagrant Eriophyidae Epitrimerus hypochoerisi
stem gall Cynipidae Phanacis hypochoeridis
leaf vagrant Aphididae Aulacorthum palustre
root collar vagrant Aphididae Protaphis picridicola
stem vagrant Aphididae Uroleucon cichorii
stem vagrant Aphididae Uroleucon sonchi
flower gall Aphididae Uroleucon hypochoeridis


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.


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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 11.i.2020