Plant Parasites of Europe

leafminers, galls and fungi

Juniperus communis

common juniper

synonym: Juniperus hibernica, intermedia

organparasitic modestagenotetaxonomic groupparasite
stemvagrantFlatidaeMetcalfa pruinosa
stemgallPhaeostoma juniperinum
leafvagrantDiprionidaeMonoctenus juniperi
leafhiddenGelechiidaeDichomeris juniperella
flowerborerTortricidaePammene juniperana
leafvagrantGelechiidaeGelechia sabinellus
unknownunknowndoubtfulTortricidaeCydia interscindana
leafhiddenTortricidaeDitula angustiorana
leafmineryounger larvaTortricidaeArchips oporana
leafhiddenolder larvaTortricidaeArchips oporana
leafvagrantTenuipalpidaePentamerismus oregonensis
leafvagrantEriophyidaeAcaricalus juniperi
leafvagrantEriophyidaePlatyphytoptus juniperi
stemborerdoubtfulSesiidaeSynanthedon cephiformis
fruitborerYponomeutidaeArgyresthia praecocella
stemborerYponomeutidaeArgyresthia arceuthina
leafscaleDiaspididaeLineaspis striata
leafleaf spotGelechiidaeGelechia senticetella
leafscaleDiaspididaeCarulaspis minima
leafscaleDiaspididaeCarulaspis juniperi
stemborerSesiidaeSynanthedon vespiformis
stemborerSesiidaeSynanthedon spuleri
leafminerGelechiidaeChionodes electella
stemborerTortricidaeCydia duplicana
fruitgallPhytoptidaeTrisetacus quadrisetus
leaf budgallCecidomyiidaeOligotrophus gemmarum
leaf budgallCecidomyiidaeOligotrophus juniperinus
leaf budgallCecidomyiidaeOligotrophus panteli
leaf budgallCecidomyiidaeOligotrophus schmidti
leaf budgallCecidomyiidaeOligotrophus valerii
leaf budgallPhytoptidaeTrisetacus juniperinus
leafminerYponomeutidaeArgyresthia abdominalis
leafminerYponomeutidaeArgyresthia aurulentella
leafminerYponomeutidaeArgyresthia dilectella
leafminerYponomeutidaeArgyresthia reticulata
leafpustuleurediniaPuccinialesGymnosporangium gaeumannii
leafvagrantAphididaeCinara juniperi
leafvagrantEriophyidaeEriophyes junipereti
leafvagrantEriophyidaeKeiferella juniperici
stempustuleteliaPuccinialesGymnosporangium amelanchieris
stempustuleteliaPuccinialesGymnosporangium clavariiforme
stempustuleteliaPuccinialesGymnosporangium cornutum
stempustuleteliaPuccinialesGymnosporangium torminali-juniperini
stempustuleteliaPuccinialesGymnosporangium tremelloides
stemvagrantAphididaeCinara smolandiae
stemvagrantAphididaeCinara cupressi
stemvagrantAphididaeCinara tujafiina
stemvagrantspring generationAphididaeCinara mordvilkoi
stemscalePseudococcidaePlanococcus vovae
rootvagrantsummer generationAphididaeGootiella alba
leafvagrantAphididaeAulacorthum solani
rootvagrantsummer generationAphididaeGootiella tremulae
rootvagrantsummer generationAphididaeCinara mordvilkoi


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.


Last modified 26.v.2020