Plant Parasites of Europe

leafminers, galls and fungi

genus Holcus

organparasitic modestagenotetaxonomic groupparasite
unknownunknowndoubtfulAeolothripidaeRhipidothrips niveipennis
flowerhiddenThripidaeThrips flavus
leafvagrantChrysomelidaeOulema gallaeciana
stemborerChloropidaeConioscinella frontella
leafvagrantTenthredinidaeDolerus nigratus
leafvagrantTenthredinidaeTenthredopsis nassata
leafvagrantTenthredinidaeTenthredopsis friesei
leafscaleEriococcidaeAcanthococcus insignis
leafscaleEriococcidaeAcanthococcus pseudinsignis
leafvagrantEriophyidaeAceria taurica
leafvagrantEriophyidaeAculodes mckenziei
leafvagrantEriophyidaeAbacarus acutatus
leafstripeUstilaginalesUstilago salveii
leafvagrantsummer generationAphididaeRhopalosiphum nymphaeae
leafminerolder larvaColeophoridaeColeophora lixella
leafminerolder larvamainColeophoridaeColeophora ornatipennella
stemgallCecidomyiidaeMayetiola destructor
leafvagrantAphididaeSchizaphis graminum
rootvagrantAphididaeGeoica setulosa
systemicborerAnguinidaeDitylenchus dipsaci
fruitgallHypocrealesClaviceps purpurea
fruitgallTilletialesTilletia controversa
flowergallTilletialesTilletia holci
leafdownErysiphales ErysiphaceaeBlumeria graminis
leafleaf spotDothidealesDilophospora alopecuri
leafleaf spotGeorgefischerialesJamesdicksonia dactylidis
leaffilmUstilaginalesTranzscheliella hypodytes
leafgallAnguinidaeAnguina graminis
leafgallEriophyidaeAbacarus hystrix
leafgallEriophyidaeAceria tenuis
leafgallPeronosporalesSclerophthora macrospora
leafminerAgromyzidaeCerodontha denticornis
leafminerAgromyzidaeCerodontha flavocingulata
leafminerAgromyzidaeCerodontha incisa
leafminerAgromyzidaeCerodontha muscina
leafminerAgromyzidaeCerodontha pygmaea
leafminerAgromyzidaeChromatomyia fuscula
leafminerAgromyzidaeChromatomyia milii
leafminerAgromyzidaeChromatomyia nigra
leafminerAgromyzidaeLiriomyza flaveola
leafminerAgromyzidaeLiriomyza phryne
leafminerAgromyzidaeMetopomyza flavonotata
leafminerdoubtfulAgromyzidaeAgromyza albipennis
leafminerAgromyzidaeAgromyza mobilis
leafminerAgromyzidaeAgromyza nigrella
leafminerAgromyzidaeAgromyza nigripes
leafminerAgromyzidaePseudonapomyza atra
leafminerElachistidaeElachista albifrontella
leafminerElachistidaeElachista apicipunctella
leafminerElachistidaeElachista argentella
leafminermainElachistidaeElachista bifasciella
leafminerElachistidaeElachista canapennella
leafminerElachistidaeElachista chrysodesmella
leafminerElachistidaeElachista diederichsiella
leafminerElachistidaeElachista dimicatella
leafminerElachistidaeElachista freyerella
leafminerElachistidaeElachista hedemanni
leafminerElachistidaeElachista herrichii
leafminerElachistidaeElachista humilis
leafminerElachistidaeElachista maculicerusella
leafminerElachistidaeElachista nobilella
leafminerElachistidaeElachista pullicomella
leafminerElachistidaeElachista rufocinerea
leafminerElachistidaeElachista subnigrella
leafminerElachistidaeElachista subocellea
leafminerElachistidaeElachista unifasciella
leafminerEphydridaeHydrellia griseola
leafpustuleCantharellalesCeratorhiza rhizodes
leafpustuleuredinia teliaPuccinialesPuccinia coronata
leafpustuleuredinia teliaPuccinialesPuccinia graminis
leafpustuleuredinia teliaPuccinialesPuccinia holcicola
leafpustuleuredinia teliaPuccinialesPuccinia holcina
leafstripeMicrobotryalesUstilentyloma brefeldii
leafstripeuredinia teliaPuccinialesPuccinia striiformis
leafvagrantsummer generationAphididaeSitobion fragariae
leafvagrantEriophyidaeAculodes holcusi
stemdownHypocrealesEpichloe clarkii
stemgallmainAphididaeDiuraphis holci
stemgallCecidomyiidaeHaplodiplosis marginata
stemgallCecidomyiidaeHybolasioptera fasciata
stemgallCecidomyiidaeMayetiola holci
stemgallChloropidaeOscinella frit
stemgallChloropidaeOscinella nitidissima
stemvagrantAphididaeLaingia psammae
rootgallAnguinidaeSubanguina radicicola
rootvagrantsummer generationAphididaeAnoecia corni
rootvagrantsummer generationAphididaeTetraneura ulmi
inquilineEriophyidaeAculodes dubius
leafvagrantAphididaeAtheroides serrulatus
leafvagrantAphididaeSitobion avenae
leafvagrantAphididaeSipha glyceriae
root collarvagrantAphididaeCryptaphis poae
leafvagrantAphididaeSipha maydis
leafvagrantsummer generationAphididaeRhopalosiphum padi
leafvagrantsummer generationAphididaeMelanaphis pyraria
leafvagrantAphididaeSchizaphis holci

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 14.viii.2020