Plant Parasites of Europe

leafminers, galls and fungi

genus Pseudotsuga

organ parasitic mode stage note taxonomic group parasite
leaf leaf spot Mycosphaerellaceae Dothistroma septosporum
dead wood borer Cerambycidae Molorchus minor
dead wood borer Cerambycidae Obrium brunneum
dead wood borer Cerambycidae Morimus asper
dead wood borer Cerambycidae Acanthocinus reticulatus
dead wood borer Cerambycidae Pogonocherus fasciculatus
stem borer Cerambycidae Cerambyx scopolii
dead wood borer Cerambycidae Ergates faber
dead wood borer Cerambycidae Prionus coriarius
dead wood borer Cerambycidae Rhagium inquisitor
dead wood borer Cerambycidae Rhagium mordax
leaf vagrant adult Curculionidae Otiorhynchus armadillo
leaf vagrant Tetranychidae Oligonychus ununguis
root macro fungus Rhizinaceae Rhizina undulata
stem pustule Gnomoniaceae Sirococcus conigenus
stem kanker Cecidomyiidae Gremmeniella abietina
systemic film Pythiaceae Globisporangium debaryanum
systemic film Pythiaceae Pythium hydnosporum
stem kanker Botryosphaeriaceae Diplodia pinea
systemic down Sclerotiniaceae Botrytis cinerea
root film Ceratobasidiaceae Rhizoctonia solani
stem kanker Phacidiaceae Allantophomopsiella pseudotsugae
stem kanker Lachnaceae Lachnellula willkommii
leaf pustule Dothioraceae Nothophaeocryptopus gaeumannii
leaf leaf spot Hemiphacidiaceae Rhabdocline pseudotsugae
leaf leaf spot Venturiaceae Rhizosphaera kalkhoffii
root film Platygloeales Helicobasidium purpureum
predator Pentatomidae Troilus luridus
flower vagrant Acanthosomatidae Cyphostethus tristriatus
leaf vagrant Miridae Atractotomus magnicornis
leaf vagrant Miridae Phoenicocoris dissimilis
leaf vagrant Miridae Parapsallus vitellinus
leaf vagrant Miridae Pinalitus atomarius
leaf vagrant adult Curculionidae Polydrusus marginatus
leaf vagrant adult Curculionidae Otiorhynchus coecus
leaf vagrant adult Curculionidae Otiorhynchus tenebricosus
leaf vagrant Noctuidae Acronicta rumicis
leaf vagrant Lasiocampidae Dendrolimus pini
leaf vagrant rarely Notodontidae Thaumetopoea pityocampa
leaf vagrant Geometridae Bupalus piniaria
leaf vagrant doubtful Geometridae Hylaea fasciaria
leaf vagrant Geometridae Eupithecia tantillaria
leaf vagrant Geometridae Thera britannica
leaf vagrant Geometridae Deileptenia ribeata
leaf vagrant Sphingidae Sphinx pinastri
flower borer Torymidae Megastigmus spermotrophus
leaf vagrant adult Cercopidae Haematoloma dorsata
stem borer doubtful Curculionidae Pityophthorus carniolicus
stem borer Curculionidae Pityophthorus pityographus
stem borer Curculionidae Pityogenes chalcographus
stem borer Curculionidae Cryphalus abietis
stem borer Curculionidae Orthotomicus erosus
stem borer Curculionidae Gnathotrichus materiarius
stem borer Curculionidae Xylosandrus germanus
stem borer Curculionidae Ips sexdentatus
stem borer Curculionidae Trypodendron lineatum
stem borer Curculionidae Pityogenes calcaratus
stem borer Siricidae Sirex cyaneus
stem borer Siricidae Sirex juvencus
stem borer Siricidae Xeris spectrum
stem borer Tortricidae Cydia coniferana
flower vagrant Coreidae Leptoglossus occidentalis
leaf hidden Tortricidae Syndemis musculana
flower borer Tortricidae Cydia strobilella
flower borer Tortricidae Cydia illutana
leaf vagrant Eriophyidae Epitrimerus taxifoliae
leaf scale Diaspididae Dynaspidiotus abietis
leaf gall Cecidomyiidae Contarinia pseudotsugae
leaf vagrant Aphididae Gilletteella coweni
leaf gall summer generation Aphididae Gilletteella cooleyi
leaf gall Aphididae Mindarus abietinus
leaf miner rarely Coleophoridae Coleophora laricella
stem vagrant doubtful Aphididae Elatobium abietinum
root vagrant summer generation Aphididae Pachypappa vesicalis
root vagrant summer generation Aphididae Prociphilus pini
root vagrant summer generation Aphididae Prociphilus xylostei
leaf vagrant rarely Aphididae Essigella californica


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 5.viii.2023