Plant Parasites of Europe

leafminers, galls and fungi

genus Alyssum

organ parasitic mode stage note taxonomic group parasite
leaf leaf spot Dothideomycetes incertae sedis Asteromella artemisiae
root film Ceratobasidiaceae Rhizoctonia solani
systemic pustule Sclerotiniaceae Sclerotinia sclerotiorum
root film Ceratocystidaceae Berkeleyomyces basicola
seeds vagrant Lygaeidae Pionosomus opacellus
flower vagrant doubtful Lygaeidae Microplax interrupta
leaf vagrant Lygaeidae Ortholomus punctipennis
predator Miridae Deraeocoris pallens
fruit vagrant Lygaeidae Aellopus atratus
leaf vagrant Miridae Lepidargyrus syriacus
leaf vagrant Lygaeidae Bagrada lepida
leaf vagrant Pentatomidae Eurydema ornata
leaf vagrant rarely Pentatomidae Graphosoma italicum
leaf vagrant Pentatomidae Carpocoris mediterraneus
leaf vagrant Pentatomidae Stagonomus devius
leaf vagrant Pentatomidae Ventocoris halophilus
leaf vagrant Pentatomidae Graphosoma semipunctatum
leaf vagrant Noctuidae Noctua comes
leaf vagrant Geometridae Nycterosea obstipata
leaf vagrant Geometridae Xanthorhoe fluctuata
leaf vagrant Pieridae Pontia daplidice
leaf vagrant Pieridae Pieris rapae
leaf vagrant Pieridae Pieris brassicae
unknown unknown Curculionidae Ceutorhynchus libertorum
leaf miner Chrysomelidae Phyllotreta nemorum
unknown borer larva Curculionidae Ceutorhynchus pulvinatus
root collar borer Curculionidae Ceutorhynchus puncticollis
unknown unknown Curculionidae Ceutorhynchus levantinus
unknown unknown Curculionidae Ceutorhynchus doganlari
unknown unknown Curculionidae Ceutorhynchus infernalis
unknown unknown Curculionidae Ceutorhynchus coarctatus
unknown unknown Curculionidae Melanobaris nigritarsis
unknown unknown Curculionidae Ceutorhynchus fallax
stem gall Curculionidae Ceutorhynchus hirtulus
unknown unknown Curculionidae Ceutorhynchus liliputanus
unknown unknown Curculionidae Ceutorhynchus subpilosus
flower hidden Thripidae Taeniothrips picipes
flower borer Nitidulidae Clypeogethes wittmeri
leaf vagrant Chrysomelidae Timarcha lugens
flower borer doubtful Nitidulidae Clypeogethes chlorocyaneus
stem borer Chrysomelidae Psylliodes tricolor
unknown unknown Chrysomelidae Psylliodes circumdata
root vagrant Chrysomelidae Psylliodes cuprea
unknown unknown Chrysomelidae Psylliodes instabilis
leaf vagrant Chrysomelidae Timarcha carmelenae
leaf vagrant Chrysomelidae Galeruca angusta
unknown borer Curculionidae Ceutorhynchus lukesi
root vagrant Chrysomelidae Phyllotreta cruciferae
stem borer larva Curculionidae Lixus punctirostris
leaf gall Eriophyidae Aceria ciansensis
fruit borer larva Curculionidae Ceutorhynchus nanus
fruit borer larva Curculionidae Ceutorhynchus posthumus
flower borer larva Curculionidae Ceutorhynchus gallorhenanus
fruit borer larva Curculionidae Ceutorhynchus striatellus
stem borer Curculionidae Aulacobaris lepidii
root scale Coccidae Rhizopulvinaria artemisiae
fruit gall Urocystidales Thecaphora thlaspeos
flower gall Eriophyidae Aceria drabae
leaf down Erysiphales Erysiphe cruciferarum
leaf down Peronosporales Peronospora alyssi-calycini
leaf gall Curculionidae Ceutorhynchus leprieuri
leaf miner Agromyzidae Liriomyza alyssi
leaf miner Agromyzidae Liriomyza strigata
leaf miner Coleophoridae Coleophora kautzi
leaf miner Coleophoridae Coleophora telonica
leaf miner Curculionidae Ceutorhynchus minutus
leaf miner Drosophilidae Scaptomyza flava
leaf miner Plutellidae Lunakia alyssella
leaf miner Plutellidae Plutella xylostella
leaf miner Psychidae Apterona helicoidella
leaf pustule Albuginales Albiginaceae Albugo candida
leaf pustule telia Pucciniales Puccinia alyssi
stem borer Curculionidae Aulacobaris lepidii
stem gall Asterolecaniidae Planchonia arabidis
stem gall Cecidomyiidae Dasineura alyssi
stem gall Cecidomyiidae Janetiella fallax
root collar gall Curculionidae Ceutorhynchus assimilis
root collar gall Plasmodiophorales Plasmodiophora brassicae

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 10.x.2022