Plant Parasites of Europe

leafminers, galls and fungi

Physokermes piceae

Physokermes piceae (von Paula Schrank, 1801)

spruce bud scale

on Abies, Picea

Physokermes piceae on Picea glauca

Picea glauca, Hungary, Mosonmagyaróvár, 21.viii.2019 © László Érse

Physokermes piceae on Picea  glauca

adult females

Physokermes piceae on Picea abies

females and larvae

Physokermes piceae on Picea abies

larvae on the needles

Physokermes piceae on Picea glauca

a single larva

Physokermes piceae on Picea abies

Picea abies, Hungary, Mosonmagyaróvár, 21.viii.2019 © László Érsek

Physokermes piceae on Picea abies

The damage for the plant to a large extent is linked to the sooty moulds that forms on the excreted honey dew.

parasite

Egg-carrying female ± 8 mm, shining, yellowish brown, shaped like a coffee bean, in shoot axils. Males in equal number as the females.

host plants

Pinaceae, oligophagous

Abies nordmanniana subsp. equi-trojani, pinsapo; Picea abies, omorika, orientalis, pungens.

phenology

Univoltine, hibernation as 2nd instar larvae.

references

Akkuzu, Arslangündoğdu & Selmi (2006a), Dziedzicka (1988a), Gertsson & Isacsson (2012a, 2014a), Graora, Spasić & Mihajlović (2012a), Hellrigl (2004a), Hoffmann (2002a), Jansen (1999b, 2013a), Koteja & Żak-Ogaza (1966a), Kozár, Guignard, Bachmann ao (1994a), Malumphy, Ostrauskas & Pye (2008a, 2010a), Schmutterer & Hoffmann (2003a), Seljak (2010a), Ülgentürk, Çanakçioğlu & Kaygin (2004a), Ülgentürk, Özdemir, Muştu, ao (2019a), Ülgentürk & Toros (1999a), Żak-Ogaza & Koteja (1964a).

Last modified 8.x.2020