organ parasitic mode stage note taxonomic group parasite
leaf scale Eriococcidae Acanthococcus greeni
unknown scale Eriococcidae Acanthococcus ammophilus
leaf scale Eriococcidae Acanthococcus pseudinsignis
stem scale Pseudococcidae Trionymus aberrans
leaf borer Phytoptidae Novophytoptus ammophilae
leaf scale Coccidae Eriopeltis lichtensteini
stem gall doubtful Eurytomidae Tetramesa hyalipennis
leaf vagrant Aphididae Chaetosiphella stipae
fruit gall Hypocreales Claviceps purpurea
leaf film Ustilaginales Tranzscheliella hypodytes
leaf miner Agromyzidae Cerodontha incisa
leaf miner Agromyzidae Cerodontha pygmaea
leaf miner Agromyzidae Cerodontha superciliosa
leaf miner Agromyzidae Chromatomyia nigra
leaf miner Gelechiidae Apatetris kinkerella
leaf pustule uredinia telia Pucciniales Puccinia coronata
leaf pustule uredinia telia Pucciniales Puccinia graminis
leaf pustule uredinia telia Pucciniales Puccinia ammophilina
leaf pustule Ustilaginales Ustilago calamagrostidis
leaf stripe uredinia telia doubtful Pucciniales Puccinia striiformis
leaf stripe uredinia telia Pucciniales Puccinia ammophilae
stem down doubtful Hypocreales Epichloe typhina
stem gall doubtful Eurytomidae Tetramesa eximia
stem gall Eurytomidae Eurytoma longipennis
stem vagrant Aphididae Laingia psammae
leaf vagrant Aphididae Atheroides hirtellus
leaf vagrant Aphididae Atheroides serrulatus
leaf vagrant Aphididae Metopolophium sabihae
leaf vagrant Aphididae Sitobion alopecuri
leaf vagrant Aphididae Chaetosiphella longirostris
leaf vagrant Aphididae Sipha elegans
leaf vagrant Aphididae Sipha glyceriae
stem vagrant Aphididae Sipha littoralis
leaf vagrant Aphididae Schizaphis rufula


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.


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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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 18.iii.2020