common juniper

synonym: Juniperus hibernica, intermedia

organ parasitic mode stage note taxonomic group parasite
leaf vagrant Tenuipalpidae Pentamerismus oregonensis
leaf vagrant Eriophyidae Acaricalus juniperi
leaf vagrant Eriophyidae Platyphytoptus juniperi
stem borer doubtful Sesiidae Synanthedon cephiformis
fruit borer Yponomeutidae Argyresthia praecocella
stem borer Yponomeutidae Argyresthia arceuthina
leaf scale Diaspididae Lineaspis striata
leaf leaf spot Gelechiidae Gelechia senticetella
leaf scale Diaspididae Carulaspis minima
leaf scale Diaspididae Carulaspis juniperi
leaf vagrant Tortricidae Ditula angustiorana
stem borer Sesiidae Synanthedon vespiformis
stem borer Sesiidae Synanthedon spuleri
leaf miner Gelechiidae Chionodes electella
stem borer Tortricidae Cydia duplicana
leaf vagrant Tortricidae Lobesia reliquana
fruit gall Phytoptidae Trisetacus quadrisetus
leaf bud gall Cecidomyiidae Oligotrophus gemmarum
leaf bud gall Cecidomyiidae Oligotrophus juniperinus
leaf bud gall Cecidomyiidae Oligotrophus panteli
leaf bud gall Cecidomyiidae Oligotrophus schmidti
leaf bud gall Cecidomyiidae Oligotrophus valerii
leaf bud gall Phytoptidae Trisetacus juniperinus
leaf miner Yponomeutidae Argyresthia abdominalis
leaf miner Yponomeutidae Argyresthia aurulentella
leaf miner Yponomeutidae Argyresthia dilectella
leaf miner Yponomeutidae Argyresthia reticulata
leaf pustule uredinia Pucciniales Gymnosporangium gaeumannii
leaf vagrant Aphididae Cinara juniperi
leaf vagrant Eriophyidae Eriophyes junipereti
leaf vagrant Eriophyidae Keiferella juniperici
stem pustule telia Pucciniales Gymnosporangium amelanchieris
stem pustule telia Pucciniales Gymnosporangium clavariiforme
stem pustule telia Pucciniales Gymnosporangium cornutum
stem pustule telia Pucciniales Gymnosporangium torminali-juniperini
stem pustule telia Pucciniales Gymnosporangium tremelloides
stem vagrant Aphididae Cinara smolandiae
stem vagrant Aphididae Cinara cupressi
stem vagrant Aphididae Cinara tujafiina
stem vagrant spring generation Aphididae Cinara mordvilkoi
stem scale Pseudococcidae Planococcus vovae
root vagrant summer generation Aphididae Gootiella alba
leaf vagrant Aphididae Aulacorthum solani
root vagrant summer generation Aphididae Gootiella tremulae
root vagrant summer generation Aphididae Cinara mordvilkoi

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 12.x.2019