creeping willow

synonym: Salix arenaria, fusca, repens subsp. arenaria + dunensis

organ parasitic mode stage note taxonomic group parasite
stem gall main Cecidomyiidae Rabdophaga salicis
flower borer larva Curculionidae Acalyptus carpini
flower borer larva doubtful Curculionidae Acalyptus sericeus
flower borer larva Curculionidae Dorytomus salicis
inquiline larva Apionidae Melanapion minimum
stem borer larva Rhynchitidae Temnocerus nanus
leaf gall Cecidomyiidae Rabdophaga marginemtorquens
leaf bud gall Cecidomyiidae Rabdophaga rosaria
leaf gall Cecidomyiidae Rabdophaga terminalis
stem gall Sesiidae Synanthedon formicaeformis
stem borer Cecidomyiidae Rabdophaga nielsenii
leaf vagrant spring generation Aphididae Cavariella theobaldi
leaf bud gall Cecidomyiidae Rabdophaga repenticola
leaf miner Gracillariidae Callisto coffeella
flower gall Eriophyidae Stenacis triradiata
leaf bud gall Cecidomyiidae Rabdophaga iteobia
leaf bud gall Cecidomyiidae Rabdophaga jaapi
leaf bud gall Cecidomyiidae Rabdophaga repenticornua
leaf bud gall Eriophyidae Aculus gemmarum
leaf down Erysiphales Erysiphe adunca
leaf gall Psyllidae Cacopsylla moscovita
leaf gall Psyllidae Cacopsylla parvipennis
leaf gall Psyllidae Cacopsylla pulchra
leaf gall Tenthredinidae Euura collactanea
leaf gall Triozidae Bactericera curvatinervis
leaf gall Triozidae Bactericera salicivora
leaf gall Triozidae Bactericera versicolor
leaf miner Agromyzidae Agromyza albitarsis
leaf miner Agromyzidae Agromyza salicina
leaf miner Coleophoridae Coleophora albidella
leaf miner Coleophoridae Coleophora lusciniaepennella
leaf miner Curculionidae Rhamphus pulicarius
leaf miner Curculionidae Tachyerges pseudostigma
leaf miner Curculionidae Tachyerges stigma
leaf miner Gracillariidae Caloptilia stigmatella
leaf miner Gracillariidae Phyllonorycter quinqueguttella
leaf miner Gracillariidae Phyllonorycter salictella
leaf miner Nepticulidae Stigmella benanderella
leaf miner Nepticulidae Stigmella salicis
leaf miner Nepticulidae Stigmella zelleriella
leaf miner Tenthredinidae Heterarthrus microcephalus
leaf pustule Chytridiales Synchytrium aurantiacum
leaf pustule uredinia telia Pucciniales Melampsora epitea
leaf pustule uredinia telia Pucciniales Melampsora repentis
leaf vagrant Eriophyidae Aceria intercedens
stem borer Cecidomyiidae Rabdophaga repentiperda
stem gall Agromyzidae Hexomyza cecidogena
stem gall Agromyzidae Hexomyza simplicoides
stem gall Cecidomyiidae Rabdophaga dubiosa
stem gall Cecidomyiidae Rabdophaga exsiccans
stem gall doubtful Cecidomyiidae Rabdophaga karschi
stem gall Cecidomyiidae Rabdophaga saliciperda
stem gall Tenthredinidae Euura weiffenbachiella
stem gall Tortricidae Cydia servillana
stem vagrant Aphididae Pterocomma salicis
stem vagrant Aphididae Pterocomma pilosum
leaf vagrant Aphididae Chaitophorus niger
leaf vagrant Aphididae Chaitophorus parvus
stem vagrant Aphididae Pterocomma jacksoni
stem vagrant Aphididae Plocamaphis flocculosa
stem vagrant Aphididae Neopterocomma verhoeveni


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.


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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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.ix.2019