lady’s bedstraw

organ parasitic mode stage note taxonomic group parasite
leaf vagrant summer generation Aphididae Myzus cerasi
stem vagrant Aphididae UhlmannIa singularis
leaf vagrant summer generation Aphididae Aphis frangulae
systemic gall Aphididae Hydaphias molluginis
systemic gall Eriophyidae Aceria galiobia
flower gall Cecidomyiidae Schizomyia galiorum
leaf bud gall Cecidomyiidae Dasineura galiicola
leaf bud gall Eriophyidae Aculus anthobius
leaf down Erysiphales Golovinomyces riedlianus
leaf down Erysiphales Neoërysiphe galii
leaf down Peronosporales Peronospora galii
leaf gall Aphididae Staegeriella necopinata
leaf gall Eriophyidae Cecidophyes calvus
leaf gall Eriophyidae Cecidophyes galii
leaf gall Triozidae Trioza galii
leaf miner Agromyzidae Galiomyza morio
leaf pustule aecia uredinia telia Pucciniales Puccinia punctata
leaf pustule uredinia telia Pucciniales Pucciniastrum guttatum
leaf pustule telia Pucciniales Puccinia galii-verni
leaf vagrant Phytoptidae Tegoprionus dentatus
stem gall Aphididae Myzus langei
stem gall Cecidomyiidae Geocrypta galii
stem gall Cecidomyiidae Geocrypta rostriformis
stem gall main Ustilaginales Melanotaenium endogenum
stem miner Agromyzidae Ophiomyia galii
leaf vagrant summer generation Aphididae Aphis fabae fabae
leaf vagrant summer generation Aphididae Dysaphis pyri
root collar vagrant Aphididae Aphis molluginis
leaf vagrant Aphididae Linosiphon galiophagum
systemic gall Aphididae Aphis galiiscabri
root vagrant Aphididae Hydaphias mosana

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.

 

mod 2.ii.2019