Plant Parasites of Europe

leafminers, galls and fungi

Laphangium luteoalbum

synonym: Gnaphalium, Helichrysum, Pseudognaphalium, luteo-album, luteoalbum

organ parasitic mode stage note taxonomic group parasite
leaf vagrant Noctuidae Noctua pronuba
unknown unknown Gelechiidae Ptocheuusa guimarensis
leaf leaf spot Mycosphaerellaceae Ovularia gnaphalii
leaf vagrant Miridae Megalocoleus delicatus
leaf vagrant Nymphalidae Vanessa cardui
leaf vagrant Vanessa virgniniensis
leaf vagrant summer generation Aphididae Aphis fabae fabae
leaf vagrant summer generation Aphididae Aphis fabae
leaf leaf spot Entylomatales Entyloma magnusii
leaf miner Agromyzidae Phytomyza kyffhusana
leaf miner Choreutidae Tebenna micalis
leaf miner Glyphipterigidae Digitivalva reticulella
leaf pustule Albuginales Pustula obtusata
stem gall Apionidae Acentrotypus brunnipes
stem gall Tortricidae Eucosma albidulana
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.

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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 17.iii.2023