organ parasitic mode stage note taxonomic group parasite
root collar borer Tortricidae Bactra robustana
root collar borer Tortricidae Bactra lancealana
leaf vagrant Phytoptidae Phytoptus maritimus
leaf vagrant Phytoptidae Phytoptus liroi
leaf borer Phytoptidae Novophytoptus rostratae
stem borer Gelechiidae Monochroa lucidella
stem borer larva Curculionidae Thryogenes festucae
root collar borer larva Curculionidae Notaris scirpi
root collar borer larva Curculionidae Notaris scirpi
stem borer larva Curculionidae Thryogenes nereis
stem borer larva Curculionidae Sphenophorus piceus
flower vagrant Aphididae Colopha hispanica
flower gall Ustilaginales Portalia uljanishcheviana
leaf miner>borer Glyphipterigidae Orthotelia sparganella
leaf miner>borer Ochsenheimeriidae Ochsenheimeria bubalella
leaf leaf spot Kriegeriales Kriegeria eriophori
leaf miner rarely Agromyzidae Cerodontha angulata
leaf miner doubtful Agromyzidae Cerodontha morosa
leaf miner Agromyzidae Cerodontha scirpi
leaf miner Agromyzidae Cerodontha suturalis
leaf miner Cosmopterigidae Cosmopterix attenuatella
leaf miner Elachistidae Elachista carinisella
leaf miner Elachistidae Elachista scirpi
leaf miner Elachistidae Elachista serricornis
leaf miner Elachistidae Elachista utonella
leaf miner Gelechiidae Monochroa moyses
leaf miner Noctuidae Globia algae
leaf pustule uredinia telia Pucciniales Puccinia scirpi
leaf pustule uredinia telia Pucciniales Uromyces lineolatus
leaf stripe Urocystidales Urocystis bolboschoeni
stem gall Blastocladiales Physoderma eleocharidis
stem gall Chloropidae Eurina lurida
stem miner doubtful Buprestidae Aphanisticus pygmaeus
stem stripe Blastocladiales Physoderma schroeteri
root gall Entorrhizales Entorrhiza raunkiaeriana
unknown gall Chloropidae Eurina ducalis
leaf vagrant Aphididae Caricosipha paniculatae
leaf vagrant Aphididae Sipha glyceriae
leaf vagrant Aphididae Subsaltusaphis picta
leaf vagrant summer generation Aphididae Rhopalosiphum nymphaeae
leaf vagrant Aphididae Saltusaphis scirpus
leaf vagrant Aphididae Schizaphis caricis
leaf vagrant Aphididae Schizaphis scirpi
leaf vagrant rarely Aphididae Vesiculaphis theobaldi

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 25.x.2019