wild privet

organ parasitic mode stage note taxonomic group parasite
leaf hidden Crambidae Palpita vitrealis
leaf hidden Tortricidae Clepsis consimilana
leaf hidden Tortricidae Doloploca punctulana
fruit borer Tortricidae Lobesia botrana
fruit borer Tortricidae Pseudargyrotoza conwagana
leaf bud vagrant Eriophyidae Aceria ligustri
stem scale Diaspididae Lepidosaphes ulmi
leaf scale Coccidae Lichtensia viburni
systemic scale Diaspididae Parlatoria pergandii
flower gall Cecidomyiidae Placochela nigripes
leaf down Erysiphales Erysiphe syringae
leaf down Erysiphales Erysiphe syringae-japonicae
leaf down Erysiphales Phyllactinia fraxini
leaf leaf spot Capnodiales Cercospora ligustrina
leaf gall Aphididae Myzus ligustri
leaf gall spring generation rarely Aphididae Prociphilus bumeliae
leaf miner Gracillariidae Caloptilia cuculipennella
leaf miner Gracillariidae Gracillaria syringella
leaf pustule aecia Pucciniales Puccinia isiacae
leaf vagrant Eriophyidae Aculus ligustri
leaf vagrant Eriophyidae Shevtchenkella ligustri
root gall Meloidogynidae Meloidogyne hapla
stem gall Asterolecaniidae Planchonia arabidis


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 14.i.2020