Plant Parasites of Europe

leafminers, galls and fungi

Melilotus officinalis

ribbed melilot

synonym: Melilotus arenarius, arvensis

organparasitic modestagenotetaxonomic groupparasite
leafleaf spotLeptospaeriaceaeLongiseptatispora meliloti
root collarvagrantdoubtfulMiridaeCapsus ater
leafvagrantMiridaeOrthocephalus saltator
leafvagrantMiridaeOrthops forelii
leafvagrantMiridaeOrthops basalis
leafvagrantMiridaeOrthops kalmii
leafvagrantMiridaeParedrocoris pectoralis
leafvagrantMiridaePlagiognathus bipunctatus
leafvagrantMiridaePlagiognathus chrysanthemi
leafvagrantMiridaeAdelphocoris lineolatus
leafvagrantMiridaeAdelphocoris vandalicus
leafvagrantMiridaeAtomoscelis onusta
leafvagrantMiridaeCalocoris roseomaculatus
leafvagrantMiridaeHalticus luteicollis
leafvagrantMiridaeLygus gemellatus
leafvagrantMiridaeLygus pratensis
leafvagrantMiridaeLygus rugulipennis
leafvagrantMiridaeNanopsallus carduellus
leafvagrantMiridaeNotostira elongata
leafvagrantMiridaeOncotylus punctipes
stemborerCerambycidaeAgapanthia violacea
leafvagrantNoctuidaeMelanchra persicariae
stemgallCecidomyiidaeLasioptera buhri
stemborerCerambycidaeAgapanthiola leucaspis
leafvagrantErebidaeEuclidia mi
leafvagrantErebidaeDicallomera fascelina
leafvagrantLycaenidaeCelastrina argiolus
flowervagrantLycaenidaeGlaucopsyche alexis
leafvagrantLycaenidaePlebejus idas
unknownunknownCurculionidaeTychius bicolor
flowerhiddenThripidaeOdontothrips loti
rootvagrantChrysomelidaeDerocrepis rufipes
flowerhiddenThripidaeFrankliniella intonsa
rootvagrantlarvaCurculionidaeSitona cylindricollis
stemborerApionidaeStenopterapion meliloti
root collarvagrantAphididaeAphis medicaginis
stemvagrantAphididaeAcyrthosiphon pisum
leafvagrantsummer generationAphididaeAphis fabae
stemborerdoubtfulAgromyzidaeMelanagromyza submetallescens
fruitvagrantColeophoridaeColeophora trifolii
stemvagrantAphididaeAphis comosa
stemvagrantAphididaeAphis craccivora
systemicborerAnguinidaeDitylenchus dipsaci
fruitgallCurculionidaeTychius breviusculus
fruitgallCurculionidaeTychius meliloti
leafdownErysiphalesErysiphe pisi var. pisi
leafdownErysiphalesErysiphe trifoliorum
leafdownPeronosporalesPeronospora meliloti
leafgallCurculionidaeTychius crassirostris
leafminerAgromyzidaeAgromyza nana
leafminerAgromyzidaeLiriomyza bryoniae
leafminerdoubtfulAgromyzidaeLiriomyza cicerina
leafminerAgromyzidaeLiriomyza congesta
leafminerGracillariidaePhyllonorycter medicaginella
leafminerPsychidaeApterona helicoidella
leafpustuleuredinia teliaPuccinialesUromyces baeumlerianus
leafvagrantAphididaeTherioaphis riehmi


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 1.ix.2022