black broom

synonym: Cytisus nigricans

organ parasitic mode stage note taxonomic group parasite
fruit borer Tortricidae Cydia succedana
leaf bud borer Gelechiidae Mirificarma mulinella
root vagrant larva Curculionidae Sitona striatellus
fruit borer larva Apionidae Exapion formaneki
larva Apionidae Exapion corniculatum
fruit borer larva Apionidae Exapion elongatulum
flower gall Aphididae Aphis cytisorum
inquiline Eriophyidae Aculops cytisicola
leaf vagrant Psyllidae Livilla radiata
leaf vagrant Psyllidae Livilla cognata
stem miner Nepticulidae Trifurcula moravica
stem Nepticulidae Trifurcula pallidella
systemic gall Eriophyidae Aculus acraspis
leaf bud gall Cecidomyiidae Asphondylia cytisi
leaf bud gall Eriophyidae Aceria cytisi
leaf down Erysiphales Erysiphe trifoliorum
leaf gall Cecidomyiidae Wachtliella niebleri
leaf miner doubtful Agromyzidae Phytoliriomyza variegata
leaf miner Apionidae Oryxolaemus flavifemoratus
leaf miner Coleophoridae Coleophora saturatella
leaf miner Coleophoridae Coleophora trifariella
leaf miner Gelechiidae Mirificarma cytisella
leaf miner Gracillariidae Micrurapteryx kollariella
leaf miner Gracillariidae Phyllonorycter staintoniella
leaf miner Lyonetiidae Leucoptera heringiella
leaf pustule aecia uredinia telia Pucciniales Uromyces fulgens
leaf pustule uredinia telia Pucciniales Uromyces genistae
leaf pustule telia Pucciniales Uromyces pallidus
leaf vagrant Aphididae Ctenocallis dobrovljanskyi
stem vagrant Aphididae Acyrthosiphon pisum
stem vagrant Aphididae Acyrthosiphon parvum
stem vagrant Aphididae Aphis craccivora

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 24.x.2019