dark-leaved willow

synonym: Salix alpicola, latifolia, nigricans

organ parasitic mode stage note taxonomic group parasite
flower borer larva Curculionidae Dorytomus majalis
leaf gall Eriophyidae Aculus tetanothrix
leaf bud gall Cecidomyiidae Rabdophaga rosaria
leaf miner Gracillariidae Callisto coffeella
bud gall Tenthredinidae Euura myrsinifoliae
leaf bud gall Cecidomyiidae Rabdophaga clavifex
leaf down Erysiphales Erysiphe adunca
leaf gall Cecidomyiidae Iteomyia capreae
leaf gall Cecidomyiidae Iteomyia major
leaf gall Psyllidae Cacopsylla ambigua
leaf gall Psyllidae Cacopsylla brunneipennis
leaf gall Psyllidae Cacopsylla elegantula
leaf gall Psyllidae Cacopsylla flori
leaf gall Psyllidae Cacopsylla nigrita
leaf gall Psyllidae Cacopsylla propinqua
leaf gall Psyllidae Cacopsylla pulchra
leaf gall Tenthredinidae Euura saliciscinereae
leaf gall Tenthredinidae Euura ischnocera
leaf gall Tenthredinidae Euura nigricantis
leaf gall Triozidae Bactericera parastriola
leaf gall Triozidae Bactericera salicivora
leaf gall Triozidae Bactericera striola
leaf miner Agromyzidae Aulagromyza fulvicornis
leaf miner Agromyzidae Aulagromyza tridentata
leaf miner Buprestidae Trachys minutus
leaf miner Chrysomelidae Zeugophora flavicollis
leaf miner Gracillariidae Caloptilia stigmatella
leaf miner Gracillariidae Phyllonorycter heringiella
leaf miner Tenthredinidae Heterarthrus microcephalus
leaf miner Tenthredinidae Scolioneura tirolensis
leaf miner Tortricidae Gypsonoma oppressana
leaf pustule uredinia telia Pucciniales Melampsora abietis-caprearum
leaf pustule uredinia telia Pucciniales Melampsora epitea
leaf pustule uredinia telia Pucciniales Melampsora laricis-epitea
leaf pustule uredinia telia Pucciniales Melampsora ribesii-epitea
stem gall Cecidomyiidae Rabdophaga pierreana
stem vagrant Aphididae Pterocomma rufipes
stem vagrant Aphididae Pterocomma salicis
stem vagrant Aphididae Aphis farinosa
stem vagrant Aphididae Plocamaphis flocculosa
leaf vagrant Aphididae Chaitophorus nigricantis
stem vagrant doubtful Aphididae Pterocomma pilosum
leaf vagrant spring generation Aphididae Cavariella theobaldi
leaf vagrant spring generation Aphididae Cavariella aquatica

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 15.vii.2019