Plant Parasites of Europe

leafminers, galls and fungi

Scabiosa ochroleuca

organ parasitic mode stage note taxonomic group parasite
flower predator Aeolothripidae Aeolothrips fasciatus
leaf hidden Thripidae Thrips tabaci
flower hidden Phlaeothripidae Haplothrips distinguendus
flower hidden Thripidae Thrips praetermissus
leaf leaf spot Didymellaceae Ascochyta dipsaci
leaf leaf spot Mycosphaerellaceae Septoria scabiosicola
leaf leaf spot Dothideomycetes Asteromella scabiosae
leaf leaf spot Capnodiales Ramularia bosniaca
flower vagrant Noctuidae Omphalophana antirrhinii
stem borer Cerambycidae Agapanthiola leucaspis
leaf vagrant Chrysomelidae Galeruca pomonae
leaf vagrant Cimbicidae Abia nitens
leaf bud borer Unknown code! doubtful Pterophoridae Gillmeria miantodactylus
root borer Tortricidae Aethes hartmanniana
flower borer Alucitidae Alucita huebneri
flower down Peronosporales Peronospora violacea
flower gall Microbotryales Microbotryum intermedium
leaf bud gall Eriophyidae Aceria squalida
leaf down Erysiphales Erysiphe knautiae
leaf down Erysiphales Leveillula taurica
leaf down Erysiphales Podosphaera dipsacacearum
leaf down Peronosporales Peronospora knautiae
leaf miner Agromyzidae Chromatomyia scabiosae
leaf miner Agromyzidae Chromatomyia scabiosella
leaf miner Gracillariidae Phyllonorycter scabiosella
stem gall Alucitidae Alucita grammodactyla
stem gall Asterolecaniidae Planchonia arabidis
flower vagrant spring generation Aphididae Aphis confusa
leaf vagrant summer generation Aphididae Aphis confusa
root collar vagrant Aphididae Aphis thomasi
stem vagrant summer generation Aphididae Macrosiphum rosae

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.x.2023