great mullein

synonym: Verbascum simplex

organ parasitic mode stage note taxonomic group parasite
leaf hidden Crambidae Paracorsia repandalis
root borer doubtful Tortricidae Endothenia oblongana
leaf vagrant Eriophyidae Aceria verbasci
leaf miner Curculionidae Cionus olens
stem borer Agromyzidae Melanagromyza verbasci
fruit gall Curculionidae Rhinusa tetra
flower gall Cecidomyiidae Asphondylia verbasci
flower gall Cecidomyiidae Dasineura verbasci
leaf down Erysiphales Golovinomyces verbasci
leaf down Erysiphales Leveillula verbasci
leaf down Peronosporales Peronospora verbasci
leaf leaf spot Capnodiales Ramularia variabilis
leaf miner Agromyzidae Amauromyza verbasci
leaf miner Agromyzidae Ophiomyia verbasci
leaf miner Gelechiidae Nothris verbascella
leaf pustule aecia telia Pucciniales Uromyces verbasci
stem gall Curculionidae Rhinusa asellus
leaf gall Aphididae Aphis verbasci


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 7.i.2020