Plant Parasites of Europe

leafminers, galls and fungi

Helichrysum stoechas

shrubby everlasting

synonym: Helichrysum decumbens

organ parasitic mode stage note taxonomic group parasite
flower hidden Phlaeothripidae Treherniella inferna
leaf vagrant Tetranychidae Bryobia alberensis
flower vagrant adult Phalacridae Olibrus baudueri
flower vagrant adult Phalacridae Olibrus millefolii
flower hidden Phalacridae Olibrus particeps
leaf vagrant Pterophoridae Platyptilia galicicaensis
predator Torymidae Torymoides kiesenwetteri
root vagrant rarely Scutelleridae Phimodera humeralis
root vagrant Cydnidae Canthophorus melanopterus
leaf vagrant Miridae Phytocoris austriacus
leaf pustule telia Pucciniales Uromyces helichrysi
leaf vagrant Tenuipalpidae Brevipalpus obovatus
leaf vagrant Geometridae Microloxia herbaria
root borer Buprestidae Meliboeus graminis
flower borer Tephritidae Trupanea stellata
flower hidden Thripidae Thrips flavus
unknown scale Eriococcidae Rhizococcus helichrysi
leaf vagrant doubtful Pterophoridae Gypsochares baptodactylus
unknown unknown Pterophoridae Gypsochares bigoti
root scale Coccidae Rhizopulvinaria artemisiae
root vagrant summer generation Aphididae Rectinasus buxtoni
leaf vagrant summer generation Aphididae Aphis fabae
leaf bud gall Tephritidae Actinoptera mamulae
leaf miner Coleophoridae Coleophora caelebipennella
leaf miner Coleophoridae Coleophora helichrysiella
leaf miner Cosmopterigidae Isidiella divitella
leaf miner Cosmopterigidae Vulcaniella fiordalisa
root gall Curculionidae Pseudocleonus grammicus
leaf vagrant summer generation Aphididae Brachycaudus helichrysi
flower vagrant Aphididae Macrosiphoniella helichrysi
leaf vagrant Aphididae Aphis gossypii

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 20.ix.2023