Plant Parasites of Europe

leafminers, galls and fungi

genus Oryza

organ parasitic mode stage note taxonomic group parasite
leaf vagrant Noctuidae Spodoptera frugiperda
root vagrant Aphididae Forda orientalis
leaf borer Aphelenchoididae Aphelenchoides besseyi
systemic film Pythiaceae Pythium catenulatum
stem down Nectriaceae Fusarium culmorum
root film Nectriaceae Fusarium verticilloides
root collar leaf spot Magnaporthaceae Nakataea sigmoidea
leaf leaf spot Pleosporaceae Pleospora oryzae
leaf leaf spot Pleosporaceae Bipolaris oryzae
leaf leaf spot Pyriculariaceae Pyricularia oryzae
leaf gall Peronosporaceae Sclerophthora macrospora
flower gall Hypocreales incertae sedis Ustilaginoidea virens
leaf leaf spot Phaeosphaeriaceae Phaeosphaeria eustoma
leaf leaf spot Phaeosphaeriaceae Phaeosphaeria oryzae
leaf vagrant doubtful Geometridae Scopula donovani
leaf vagrant Miridae Trigonotylus caelestialium
leaf vagrant Miridae Trigonotylus tenuis
leaf vagrant Rhopalidae Rhopalus maculatus
flower vagrant Pentatomidae Aelia acuminata
leaf vagrant Delphacidae Toya propinqua
leaf vagrant Rhopalidae Liorhyssus hyalinus
leaf vagrant Noctuidae Mythimna unipuncta
stem borer Noctuidae Sesamia nonagrioides
flower vagrant rarely Nolidae Earias insulana
stem borer Crambidae Chilo agamemnon
leaf vagrant doubtful Erebidae Utetheisa pulchella
leaf vagrant Noctuidae Leucania loreyi
leaf vagrant Nymphalidae Minois dryas
leaf vagrant Delphacidae Laodelphax striatellus
leaf vagrant Delphacidae Sogatella vibix
leaf vagrant Cicadellidae Zyginidia eremita
leaf vagrant Cicadellidae Zyginidia pullula
leaf vagrant Phlaeothripidae Haplothrips hukkineni
unknown unknown Phlaeothripidae Haplothrips flavicinctus
unknown unknown Crambidae Herpetogramma licarsialis
stem borer Crambidae Chilo suppressalis
leaf vagrant Aphididae Sitobion avenae
leaf miner Agromyzidae Agromyza oryzae
root vagrant Aphididae Geoica setulosa
stem borer Gelechiidae Ephysteris promptella
root vagrant summer generation Aphididae Tetraneura nigriabdominalis
root vagrant summer generation Aphididae Paracletus cimiciformis
leaf vagrant Aphididae Sipha glyceriae
leaf vagrant Aphididae Sipha maydis
leaf vagrant Aphididae Rhopalosiphum maidis


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.


Last modified 23.i.2024