Plant Parasites of Europe

leafminers, galls and fungi

Fraxinus angustifolia

narrow-leaved ash

synonym: Fraxinus orientalis, parvifolia Lam., rostrata, rotundifolia Mill.

organparasitic modestagenotetaxonomic groupparasite
leafvagrantCurculionidaeStereonychus fraxini
leafvagrantThripidaeThrips major
leafhiddenYponomeutidaeZelleria hepariella
unknownunknownGracillariidaeGracillaria loriolella
leafvagrantTenthredinidaeTomostethus nigritus
leafscaleAleyrodidaeDialeurodes citri
leafscaleAleyrodidaeSiphoninus phillyreae
leafgallEriophyidaeAceria fraxinicola
leafgallCecidomyiidaeDasineura fraxini
leafvagrantPsyllidaePsyllopsis fraxinicola
leafgallPsyllidaePsyllopsis discrepans
flowergallEriophyidaeAceria fraxinivora
leafdownErysiphalesPhyllactinia fraxini
leafgallCecidomyiidaeDasineura acrophila
leafgallEriophyidaeAculus fraxini
leafgallEriophyidaeTegolophus califraxini
leafgallPsyllidaePsyllopsis distinguenda
leafminerAgromyzidaeAulagromyza heringii
leafminerGracillariidaeCaloptilia cuculipennella
leafvagrantEriophyidaeTegonotus collaris
leafgallspring generationAphididaeProciphilus bumeliae
leafgallspring generationAphididaeProciphilus fraxini

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 6.ix.2020