organ parasitic mode stage note taxonomic group parasite
stem borer larva Curculionidae Bagous tubulus
stem borer larva Curculionidae Tournotaris bimaculata
root collar borer larva Curculionidae Notaris acridulus
root collar borer larva Curculionidae Notaris scirpi
fruit gall Hypocreales Claviceps purpurea
leaf miner>borer Glyphipterigidae Orthotelia sparganella
leaf miner>borer Noctuidae Sedina buettneri
leaf down Erysiphales Erysiphaceae Blumeria graminis
leaf leaf spot Microbotryales Ustilentyloma fluitans
leaf film Ustilaginales Tranzscheliella hypodytes
leaf gall Eriophyidae Aceria tenuis
leaf gall Peronosporales Sclerophthora macrospora
leaf miner Agromyzidae Cerodontha pygmaea
leaf miner Agromyzidae Chromatomyia fuscula
leaf miner Agromyzidae Chromatomyia nigra
leaf miner doubtful Agromyzidae Agromyza albipennis
leaf miner Agromyzidae Agromyza alunulata
leaf miner Agromyzidae Agromyza lucida
leaf miner Agromyzidae Agromyza nigrella
leaf miner Agromyzidae Agromyza nigripes
leaf miner Crambidae Donacaula forficella
leaf miner Crambidae Nymphula nitidulata
leaf miner Elachistidae Elachista apicipunctella
leaf miner Elachistidae Elachista poae
leaf miner Elachistidae Elachista pomerana
leaf miner Ephydridae Hydrellia griseola
leaf miner Ephydridae Hydrellia thoracica
leaf pustule Cantharellales Ceratorhiza rhizodes
leaf pustule uredinia telia Pucciniales Puccinia coronata
leaf pustule uredinia telia Pucciniales Puccinia graminis
leaf stripe Blastocladiales Physoderma gerhardtii
leaf stripe uredinia telia Pucciniales Puccinia striiformis
leaf stripe Ustilaginales Ustilago davisii
leaf stripe Ustilaginales Ustilago filiformis
stem down Hypocreales Epichloe glyceriae
stem gall Cecidomyiidae Octodiplosis glyceriae
stem vagrant Aphididae Laingia psammae
root collar vagrant summer generation Aphididae Rhopalomyzus poae
root gall Plasmodiophorales Sorosphaera radicalis
predator Hypocreales Neobarya aurantiaca
root collar vagrant summer generation Aphididae Rhopalomyzus poae
leaf vagrant Aphididae Sipha glyceriae
leaf vagrant summer generation Aphididae Metopolophium dirhodum
leaf vagrant summer generation Aphididae Sitobion fragariae
root vagrant summer generation Aphididae Rhopalosiphum oxyacanthae
leaf vagrant Aphididae Sitobion avenae
leaf vagrant summer generation Aphididae Rhopalosiphum nymphaeae
leaf vagrant summer generation Aphididae Rhopalosiphum padi


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 13.v.2019