synonym: Aira, Deschampsia flexuosa; Deschampsia stricta

organ parasitic mode stage note taxonomic group parasite
leaf miner Agromyzidae Liriomyza flaveola
leaf miner Agromyzidae Liriomyza richteri
flower borer Cecidomyiidae Dasineura airae
leaf miner Elachistidae Elachista adscitella
leaf miner Elachistidae Elachista albidella
leaf miner Elachistidae Elachista bifasciella
leaf miner Elachistidae Elachista exactella
leaf miner doubtful Elachistidae Elachista nielswolffi
leaf miner main Elachistidae Elachista nobilella
leaf miner Elachistidae Elachista pullicomella
leaf gall Eriophyidae Aceria tenuis
root collar vagrant Aphididae Jacksonia papillata
leaf vagrant Aphididae Metopolophium tenerum
miner Agromyzidae Liriomyza pedestris
leaf down Erysiphales Erysiphaceae Blumeria graminis
leaf gall Anguinidae Anguina graminis
leaf pustule uredinia telia Pucciniales Puccinia coronata
leaf pustule uredinia telia Pucciniales Puccinia graminis
leaf pustule uredinia telia Pucciniales Uromyces airae-flexuosae
leaf stripe Tilletiales Tilletia flectens
leaf stripe Ustilaginales Ustilago striiformis
stem gall Cecidomyiidae Hybolasioptera fasciata
stem gall Cecidomyiidae Lasioptera calamagrostidis
stem gall Eurytomidae Tetramesa airae
root gall Anguinidae Subanguina radicicola
leaf vagrant Aphididae Atheroides serrulatus
leaf vagrant Aphididae Chaetosiphella berlesei
leaf vagrant Aphididae Sipha maydis

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 3.vii.2019