Plant Parasites of Europe

leafminers, galls and fungi

genus Gerbera

organ parasitic mode stage note taxonomic group parasite
root film Ceratobasidiaceae Rhizoctonia solani
systemic pustule Sclerotiniaceae Sclerotinia sclerotiorum
systemic down Sclerotiniaceae Botrytis cinerea
stem down Nectriaceae Fusarium oxysporum
root film Plectosphaerellaceae Verticillium albo-atrum
root film Plectosphaerellaceae Verticillium dahliae
leaf leaf spot Pleosporaceae Alternaria solani
leaf leaf spot Didymellaceae Ascochyta doronici
leaf leaf spot Mycosphaerellaceae Septoria gerberae
leaf leaf spot Phyllostictaceae Phyllosticta gerbericola
root film Peronosporaceae Phytophthora cryptogea
stem scale Pseudococcidae Pseudococcus viburni
leaf vagrant Noctuidae Helicoverpa armigera
root collar hidden Crambidae Duponchelia fovealis
leaf hidden Tortricidae Clepsis spectrana
leaf scale Aleyrodidae Aleyrodes proletella
leaf miner Agromyzidae Chromatomyia horticola
leaf down Erysiphales Golovinomyces cichoracearum
leaf down Erysiphales Podosphaera xanthii
leaf miner Agromyzidae Chromatomyia syngenesiae
leaf miner Agromyzidae Liriomyza bryoniae
leaf miner Agromyzidae Liriomyza huidobrensis
leaf miner Agromyzidae Liriomyza strigata
leaf miner Agromyzidae Liriomyza trifolii
leaf pustule Albuginales Pustula obtusata
root gall Meloidogynidae Meloidogyne arenaria
leaf vagrant summer generation Aphididae Capitophorus elaeagni
leaf vagrant Aphididae Aphis gossypii


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.


Last modified 3.xii.2022