Plant Parasites of Europe

leafminers, galls and fungi

Reseda alba

white mignonette

organ parasitic mode stage note taxonomic group parasite
predator Anthocoridae Orius niger
leaf vagrant Pieridae Pieris rapae
root vagrant Chrysomelidae Phyllotreta nodicornis
unknown unknown Chrysomelidae Psylliodes pallidipennis
root vagrant Chrysomelidae Phyllotreta cruciferae
root vagrant Chrysomelidae Phyllotreta corrugata
root vagrant Chrysomelidae Phyllotreta procera
root vagrant Chrysomelidae Phyllotreta rufitarsis
leaf down Erysiphales Erysiphe cruciferarum
leaf down Erysiphales Leveillula taurica
leaf miner Drosophilidae Scaptomyza flava
leaf pustule aecia Pucciniales Puccinia isiacae
root collar borer Curculionidae Ceutorhynchus resedae

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.

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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.

 

Last modified 14.iii.2022