greater burdock

organ parasitic mode stage note taxonomic group parasite
root vagrant Syrphidae Cheilosia impressa
root borer Syrphidae Cheilosia vulpina
flower borer larva Curculionidae Larinus sturnus
leaf miner Agromyzidae Chromatomyia horticola
root collar vagrant Aphididae Brachycaudus lateralis
stem borer Agromyzidae Melanagromyza lappae
fruit gall Tephritidae Terellia tussilaginis
flower gall Tephritidae Tephritis bardanae
leaf down Erysiphales Golovinomyces depressus
leaf down Erysiphales Podosphaera xanthii
leaf down Peronosporales Bremia lactucae
leaf leaf spot Capnodiales Ramularia abscondita
leaf miner Agromyzidae Chromatomyia syngenesiae
leaf miner Agromyzidae Liriomyza bryoniae
leaf miner Agromyzidae Liriomyza strigata
leaf miner Agromyzidae Phytomyza lappae
leaf miner Anthomyiidae Pegomya laticornis
leaf miner Choreutidae Tebenna micalis
leaf miner Coleophoridae Coleophora peribenanderi
leaf miner Depressariidae Agonopterix arenella
leaf miner Depressariidae Agonopterix subpropinquella
leaf miner Psychidae Apterona gracilis
leaf miner Sciaridae Phytosciara halterata
leaf miner Sciaridae Phytosciara macrotricha
leaf pustule Chytridiales Synchytrium aureum
leaf pustule aecia Pucciniales Puccinia silvatica
leaf pustule uredinia telia Pucciniales Puccinia bardanae
leaf vagrant Eriophyidae Aceria inturbida
root collar borer Apionidae Ceratapion onopordi
leaf vagrant summer generation Aphididae Aphis fabae
leaf vagrant summer generation Aphididae Brachycaudus cardui
root collar vagrant Aphididae Dysaphis lappae lappae
leaf vagrant summer generation Aphididae Aphis fabae mordvilkoi
leaf vagrant summer generation Aphididae Aphis fabae fabae
leaf vagrant summer generation Aphididae Aphis fabae solanella
leaf vagrant Aphididae Myzus ornatus

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 16.vi.2019