yarrow

synonym: Achillea borealis, lanulosa, magna

organ parasitic mode stage note taxonomic group parasite
stem borer younger larva Tortricidae Epiblema graphana
root borer older larva Tortricidae Epiblema graphana
stem borer Syrphidae Cheilosia vernalis
unknown borer larva Curculionidae Trichosirocalus spurnyi
unknown borer larva Curculionidae Trichosirocalus barnevillei
root borer larva Curculionidae Coryssomerus capucinus
stem borer larva Curculionidae Microplontus triangulum
root borer larva Curculionidae Cyphocleonus dealbatus
flower borer larva Curculionidae Pseudostyphlus pillumus
leaf bud borer Pterophoridae Gillmeria pallidactyla
root collar vagrant Aphididae Microsiphum nudum
leaf vagrant summer generation Aphididae Aphis fabae fabae
root vagrant Aphididae Aphis oligommata
leaf miner Agromyzidae Chromatomyia horticola
flower gall doubtful Tephritidae Tephritis nigricauda
leaf vagrant Aphididae Myzus ascalonicus
stem borer Agromyzidae Melanagromyza oligophaga
leaf vagrant Coleophoridae Coleophora carelica
stem miner Agromyzidae Ophiomyia spenceri
unknown unknown Agromyzidae Liriomyza hampsteadensis
flower vagrant Coleophoridae Coleophora quadristraminella
fruit vagrant Coleophoridae Coleophora argentula
fruit gall Cecidomyiidae Ozirhincus millefolii
flower borer Cecidomyiidae Macrolabis achilleae
flower borer Tephritidae Tephritis dioscurea
flower borer Tephritidae Trupanea amoena
flower gall Cecidomyiidae Rhopalomyia ptarmicae
flower gall Eriophyidae Aceria achilleae
flower gall Eriophyidae Aceria kiefferi
flower gall Tephritidae Eurasimona stigma
leaf bud gall Cecidomyiidae Rhopalomyia millefolii
leaf down rarely Erysiphales Golovinomyces artemisiae
leaf down Erysiphales Golovinomyces macrocarpus
leaf down Peronosporales Paraperonospora leptosperma
leaf leaf spot Capnodiales Didymaria matricariae
leaf leaf spot Entylomatales Entyloma achilleae
leaf gall Anguinidae Subanguina millefolii
leaf gall Cecidomyiidae Lasioptera francoisi
leaf gall Psyllidae Craspedolepta nervosa
leaf gall Triozidae Trioza abdominalis
leaf miner Agromyzidae Liriomyza ptarmicae
leaf miner Agromyzidae Liriomyza strigata
leaf miner Agromyzidae Phytomyza achilleae
leaf miner Agromyzidae Phytomyza pullula
leaf miner doubtful Agromyzidae Phytomyza tanaceti
leaf miner Bucculatricidae Bucculatrix clavenae
leaf miner Bucculatricidae Bucculatrix cristatella
leaf miner Bucculatricidae Bucculatrix fatigatella
leaf miner Bucculatricidae Bucculatrix humiliella
leaf miner doubtful Bucculatricidae Bucculatrix latviaella
leaf miner Coleophoridae Coleophora caelebipennella
leaf miner Coleophoridae Coleophora ditella
leaf miner Coleophoridae Coleophora expressella
leaf miner Coleophoridae Coleophora follicularis
leaf miner Coleophoridae Coleophora gardesanella
leaf miner Coleophoridae Coleophora millefolii
leaf miner Coleophoridae Coleophora partitella
leaf miner Coleophoridae Coleophora ptarmicia
leaf miner Coleophoridae Coleophora succursella
leaf miner Coleophoridae Coleophora trochilella
leaf miner Gelechiidae Sophronia humerella
leaf miner Psychidae Apterona helicoidella
leaf miner Tortricidae Cnephasia incertana
leaf pustule Chytridiales Synchytrium globosum
leaf pustule telia Pucciniales Puccinia millefolii
leaf vagrant rarely Aphididae Metopeurum fuscoviride
leaf vagrant Aphididae Coloradoa achilleae
leaf vagrant summer generation Aphididae Brachycaudus helichrysi
leaf vagrant Eriophyidae Calepitrimerus achilleae
stem borer Agromyzidae Ophiomyia curvipalpis
stem gall Asterolecaniidae Planchonia arabidis
stem gall Pyralidae Phycitodes maritima
stem gall Tephritidae Campiglossa misella
root collar gall Tephritidae Dithryca guttularis
root collar gall Tephritidae Oxyna flavipennis
root collar gall doubtful Tephritidae Oxyna nebulosa
root vagrant Aphididae Trama troglodytes
leaf vagrant summer generation Aphididae Brachycaudus cardui
leaf vagrant summer generation Aphididae Aphis fabae
leaf vagrant summer generation Aphididae Myzus persicae
root vagrant Aphididae Aphis vandergooti
flower miner Agromyzidae Liriomyza flavopicta
leaf vagrant Aphididae Pleotrichophorus duponti
root collar vagrant spring generation doubtful Aphididae Acaudinum longisetosum
leaf vagrant Aphididae Aulacorthum solani
stem vagrant summer generation doubtful Aphididae Acaudinum longisetosum
stem vagrant doubtful Aphididae Macrosiphoniella abrotani
leaf vagrant Aphididae Macrosiphoniella sejuncta
flower vagrant main Aphididae Macrosiphoniella millefolii
leaf vagrant Aphididae Macrosiphoniella usquertensis
root collar vagrant Aphididae Microsiphum millefolii
leaf vagrant Aphididae Uroleucon achilleae
root vagrant Aphididae Protrama flavescens
leaf vagrant Aphididae Macrosiphoniella tapuskae

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 2.viii.2019