Pachypappa tremulae (Linnaeus, 1761)

aspen-spruce aphid

on Populus, primary host plant


leaf nests, caused by the curving of alle petioles on a dwarf shoot.

host plants

Salicaceae, (narrowly?) monophagous

Populus tremula.

Blackman & Eastop, and Heie only cite tremula; other authors add alba and x canescens.

on Picea, secondary host plant


Apterae 0.5-3 mm, pale, on thin mycorrhizal root ends. Some populations live permanently on the secondary host plant. Not attended by ants.


Pinaceae, monophagous

Picea abies, orientalis, sitchensis.


Asiphum, Asiphon, Schizoneura, tremulae.


Albrecht (2015a, 2017a), Blackman & Eastop (2014), Börner & Franz (1956a), Buhr (1965), Carter & Danielsson (1993a), Dauphin & Aniotsbehere (1997a), Heie (1980a), Hellrigl (2004a), Houard (1908a), Lampel & Meier (2003a), Masłowski, Ledwoń, Wyglenda ao (2017a), Redfern & Shirley (2011a), Stroyan (1975a), Szelegiewicz (1982a), Tambs-Lyche & Heie (1994a), Weis (1955a).

mod 25.v.2018