organ parasitic mode stage note taxonomic group parasite
leaf miner Pterophoridae Platyptilia tesseradactyla
root scale Coccidae Rhizopulvinaria artemisiae
root collar borer Tephritidae Heringina guttata
leaf vagrant Aphididae Macrosiphoniella aetnensis
fruit vagrant Coleophoridae Coleophora pappiferella
root vagrant summer generation Aphididae Rectinasus buxtoni
leaf vagrant summer generation Aphididae Aphis fabae
flower gall summer generation Tephritidae Actinoptera discoidea
leaf bud gall spring generation Tephritidae Actinoptera discoidea
leaf bud gall Tephritidae Actinoptera mamulae
leaf down Erysiphales Euoidium helichrysi
leaf down Erysiphales Leveillula helichrysi
leaf down Peronosporales Bremia lactucae
leaf down Peronosporales Paraperonospora sulphurea
leaf leaf spot Entylomatales Entyloma magnusii
leaf miner Agromyzidae Chromatomyia syngenesiae
leaf miner Agromyzidae Liriomyza trifolii
leaf miner Agromyzidae Phytomyza kyffhusana
leaf miner Bucculatricidae Bucculatrix gnaphaliella
leaf miner Bucculatricidae Bucculatrix helichrysella
leaf miner Choreutidae Tebenna micalis
leaf miner Coleophoridae Coleophora caelebipennella
leaf miner Coleophoridae Coleophora directella
leaf miner Coleophoridae Coleophora ditella
leaf miner Coleophoridae Coleophora gnaphalii
leaf miner Coleophoridae Coleophora helichrysiella
leaf miner Cosmopterigidae Vulcaniella fiordalisa
leaf miner Cosmopterigidae Vulcaniella pomposella
leaf miner Cosmopterigidae Isidiella divitella
leaf miner Gelechiidae Scrobipalpula psilella
leaf miner Gelechiidae Sophronia humerella
leaf miner Glyphipterigidae Digitivalva eglanteriella
leaf miner Glyphipterigidae Digitivalva reticulella
leaf miner Noctuidae Eublemma minutata
leaf miner Zygaenidae Jordanita chloros
leaf pustule Albuginales Pustula obtusata
stem borer Agromyzidae Napomyza lateralis
stem gall Tortricidae Eucosma albidulana
root gall Curculionidae Pseudocleonus grammicus
leaf vagrant Aphididae Pleotrichophorus filaginis
leaf vagrant Aphididae Pleotrichophorus helichrysi
leaf vagrant summer generation Aphididae Brachycaudus helichrysi
leaf vagrant Aphididae Aphis gossypii
root vagrant Aphididae Macrosiphoniella hillerislambersi
stem vagrant Aphididae Aphis craccivora
stem vagrant Aphididae Macrosiphoniella janckei
flower vagrant Aphididae Macrosiphoniella helichrysi
leaf vagrant rarely Aphididae Ovatus inulae

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.

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 5.iii.2019