organ parasitic mode stage note taxonomic group parasite
leaf hidden Crambidae Anania hortulata
leaf miner younger larva Tortricidae Cnephasia stephensiana
leaf hidden older larva Tortricidae Cnephasia stephensiana
root borer doubtful Tortricidae Endothenia oblongana
flower vagrant Tortricidae Endothenia marginana
stem borer larva Curculionidae Coeliastes lamii
stem borer larva Curculionidae Datonychus angulosus
leaf miner Agromyzidae Chromatomyia horticola
stem vagrant Aphididae Macrosiphum euphorbiellum
stem borer Agromyzidae Melanagromyza tschirnhausi
stem miner Agromyzidae Ophiomyia labiatarum
leaf vagrant summer generation Aphididae Aphis frangulae
leaf vagrant Aphididae Aphis gossypii
systemic borer Anguinidae Ditylenchus dipsaci
flower gall Cecidomyiidae Dasineura galeopsis
flower gall Cecidomyiidae Dasineura tetrahit
flower vagrant summer generation Aphididae Roepkea marchali
leaf down Erysiphales Neoërysiphe galeopsidis
leaf down Peronosporales Peronospora galeopsidis
leaf leaf spot Capnodiales Ramularia lamii
leaf leaf spot Capnodiales Septoria galeopsidis
leaf leaf spot Diaporthales Ascochyta lamiorum
leaf miner Agromyzidae Liriomyza bryoniae
leaf miner Agromyzidae Liriomyza eupatorii
leaf miner Agromyzidae Liriomyza strigata
leaf miner Agromyzidae Amauromyza labiatarum
leaf miner Agromyzidae Amauromyza lamii
leaf miner Agromyzidae Amauromyza morionella
leaf miner Chrysomelidae Apteropeda orbiculata
leaf miner Chrysomelidae Dibolia cynoglossi
leaf miner Chrysomelidae Dibolia depressiuscula
leaf pustule Chytridiales Synchytrium aureum
leaf pustule aecia Pucciniales Puccinia isiacae
leaf vagrant summer generation Aphididae Aphis nasturtii
leaf vagrant summer generation main Aphididae Cryptomyzus galeopsidis
leaf vagrant summer generation rarely Aphididae Cryptomyzus ribis
leaf vagrant summer generation Aphididae Myzus padellus
leaf vagrant Diptilomiopidae Rhyncaphytoptus galeopsidis
stem borer Agromyzidae Napomyza lateralis
stem gall Curculionidae Thamnurgus kaltenbachii
root gall Heteroderidae Heterodera schachtii
root gall Heteroderidae Heterodera trifolii
root gall Meloidogynidae Meloidogyne hapla
root gall Ustilaginales Melanotaenium jaapi
root vagrant summer generation Aphididae Kaltenbachiella pallida
leaf vagrant summer generation rarely Aphididae Cryptomyzus korschelti
leaf vagrant Aphididae Aulacorthum solani
leaf vagrant summer generation Aphididae Cryptomyzus stachydis
leaf vagrant summer generation Aphididae Aphis frangulae beccabungae

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.

 

mod 12.ii.2020