Plant Parasites of Europe

leafminers, galls and fungi

genus Briza

organ parasitic mode stage note taxonomic group parasite
stem hidden Pseudococcidae Fonscolombia abdita
root collar film Magnaporthaceae Gaeumannomyces tritici
leaf leaf spot Leptosphaeriaceae Leptosphaeria brizae
root gall Plasmodiophoraceae Ligniera hypogaea
leaf leaf spot Mycosphaerellaceae Septoria brizae
leaf leaf spot Glomerellaceae Colletotrichum graminicola
leaf vagrant Pentatomidae Neottiglossa leporina
leaf leaf spot Georgefischeriales Jamesdicksonia dactylidis
leaf vagrant Noctuidae Apamea scolopacina
flower gall Tilletiales Tilletia viennotii
leaf vagrant Nymphalidae Coenonympha glycerion
leaf vagrant Nymphalidae Erebia aethiops
leaf vagrant Cicadellidae Euscelis incisus
leaf vagrant Cicadellidae Planaphrodes bifasciatus
leaf vagrant Cicadellidae Psammotettix cephalotes
leaf vagrant Delphacidae Javesella salina
stem borer Chloropidae Oscinimorpha sordidissima
stem scale Pseudococcidae Heterococcus nudus
stem scale Pseudococcidae Trionymus aberrans
leaf stripe Ustilaginales Ustilago brizae
leaf vagrant Eriococcidae Greenisca brachypodii
root vagrant Aphididae Geoica setulosa
flower borer Cecidomyiidae Contarinia brizae
leaf down Erysiphales Erysiphaceae Blumeria graminis
leaf leaf spot Georgefischeriales Jamesdicksonia brizae
leaf gall Eriophyidae Aceria tenuis
leaf miner Agromyzidae Cerodontha incisa
leaf miner Agromyzidae Chromatomyia nigra
leaf miner Agromyzidae Liriomyza flaveola
leaf miner Agromyzidae Agromyza mobilis
leaf miner Agromyzidae Agromyza nigrella
leaf miner older larva Coleophoridae Coleophora ornatipennella
leaf miner older larva Coleophoridae Coleophora lixella
leaf miner Elachistidae Elachista sicula
leaf miner Ephydridae Hydrellia griseola
leaf pustule Cantharellales Ceratorhiza rhizodes
leaf pustule uredinia telia Pucciniales Puccinia coronata
leaf pustule uredinia telia Pucciniales Puccinia graminis
leaf pustule uredinia telia Pucciniales Uromyces brizae
leaf stripe uredinia telia Pucciniales Puccinia striiformis
leaf stripe Urocystidales Urocystis helvetica
leaf vagrant Aphididae Sitobion avenae
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.

 

Last modified 25.i.2023