Plant Parasites of Europe

leafminers, galls and fungi

Rhamnus saxatilis

organ parasitic mode stage note taxonomic group parasite
leaf vagrant Geometridae Triphosa sabaudiata
leaf vagrant Geometridae Philereme transversata
leaf hidden Tortricidae Archips crataegana
leaf hidden Tortricidae Ancylis sparulana
leaf hidden Tortricidae Ancylis obtusana
leaf hidden Cosmopterigidae Sorhagenia lophyrella
leaf hidden Pyralidae Acrobasis legatea
leaf vagrant Psyllidae Cacopsylla rhamnicola
stem borer Sesiidae Synanthedon stomoxiformis
leaf down Erysiphales Erysiphe friesei
leaf gall doubtful Triozidae Trichochermes walkeri
leaf miner Bucculatricidae Bucculatrix frangutella
leaf miner Nepticulidae Stigmella catharticella
leaf miner Nepticulidae Stigmella rhamnella
leaf miner Nepticulidae Stigmella rhamnophila
leaf pustule aecia Pucciniales Puccinia coronata
leaf pustule aecia Pucciniales Puccinia sesleriae

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.

 

Last modified 27.v.2021