Plant Parasites of Europe

leafminers, galls and fungi

Pseudotsuga menziesii

douglas fir

synonym: Pseudotsuga douglasii, taxifolia

organparasitic modestagenotetaxonomic groupparasite
rootfilmPlatygloealesHelicobasidium purpureum
flowervagrantAcanthosomatidaeCyphostethus tristriatus
leafvagrantMiridaeAtractotomus magnicornis
leafvagrantMiridaePhoenicocoris dissimilis
leafvagrantMiridaeParapsallus vitellinus
leafvagrantMiridaePinalitus atomarius
leafvagrantadultCurculionidaeOtiorhynchus coecus
leafvagrantadultCurculionidaeOtiorhynchus tenebricosus
leafvagrantNoctuidaeAcronicta rumicis
leafvagrantrarelyNotodontidaeThaumetopoea pityocampa
leafvagrantGeometridaeBupalus piniaria
leafvagrantdoubtfulGeometridaeHylaea fasciaria
leafvagrantGeometridaeEupithecia tantillaria
leafvagrantGeometridaeThera britannica
leafvagrantGeometridaeDeileptenia ribeata
leafvagrantSphingidaeSphinx pinastri
flowerborerTorymidaeMegastigmus spermotrophus
leafvagrantadultCercopidaeHaematoloma dorsata
stemborerdoubtfulCurculionidaePityophthorus carniolicus
stemborerCurculionidaePityophthorus pityographus
stemborerCurculionidaePityogenes chalcographus
stemborerCurculionidaeCryphalus abietis
stemborerCurculionidaeOrthotomicus erosus
stemborerCurculionidaeXylosandrus germanus
stemborerCurculionidaeIps sexdentatus
stemborerCurculionidaeTrypodendron lineatum
stemborerCurculionidaePityogenes calcaratus
stemborerSiricidaeXeris spectrum
stemborerTortricidaeCydia coniferana
flowervagrantCoreidaeLeptoglossus occidentalis
leafhiddenTortricidaeSyndemis musculana
flowerborerTortricidaeCydia strobilella
flowerborerTortricidaeCydia illutana
leafvagrantEriophyidaeEpitrimerus taxifoliae
leafgallCecidomyiidaeContarinia pseudotsugae
leafvagrantAphididaeGilletteella coweni
leafgallAphididaeMindarus abietinus
leafgallsummer generationAphididaeGilletteella cooleyi
leafminerrarelyColeophoridaeColeophora laricella
stemvagrantdoubtfulAphididaeElatobium abietinum
rootvagrantsummer generationAphididaePachypappa vesicalis
rootvagrantsummer generationAphididaeProciphilus xylostei
rootvagrantsummer generationAphididaeProciphilus pini
leafvagrantrarelyAphididaeEssigella 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 13.viii.2022