Plant Parasites of Europe

leafminers, galls and fungi

Daphne gnidium

organ parasitic mode stage note taxonomic group parasite
leaf vagrant Miridae Hypsitylus prasinus
leaf vagrant Pentatomidae Carpocoris mediterraneus
flower vagrant doubtful Tortricidae Lobesia bicinctana
leaf vagrant Pyralidae Cryptoblabes gnidiella
flower hidden Thripidae Thrips flavus
root vagrant Chrysomelidae Longitarsus candidulus
root scale Eriococcidae Rhizococcus gnidii
stem scale Eriococcidae Acanthococcus thymi
stem scale Diaspididae Dynaspidiotus britannicus
leaf hidden Tortricidae Lozotaenia cupidinana
leaf vagrant Tortricidae Cacoecimorpha pronubana
fruit borer Tortricidae Lobesia botrana
leaf scale Aleyrodidae Bemisia tabaci
leaf scale Diaspididae Aspidiotus nerii
flower gall Cecidomyiidae Dasineura daphnephila
leaf bud gall Cecidomyiidae Dasineura daphnes
leaf miner Lyonetiidae Phyllobrostis daphneella
leaf miner Lyonetiidae Phyllobrostis fregenella
stem gall Lyonetiidae Phyllobrostis eremitella

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 5.iv.2022