Plant Parasites of Europe

leafminers, galls and fungi

Phorodon humuli

Phorodon humuli (Schrank, 1801)

damson-hop aphid

on Prunus, primary host plant

Phorodon humuli: galls on Prunus spinosa

Prunus spinosa, Hungary, Halászi, 7.v.2016 © László Érsek

Phorodon humuli: galls on Prunus spinosa

dense colonies at the undersides of the leaves

Phorodon humuli: apterae


Phorodon humuli: galls on Prunus armeniaca

Prunus armeniaca, Hungary, Szada, 14.v.2018 © László Érsek

Phorodon humuli: aptarae


Phorodon humuli: aptara


Phorodon humuli: larva


Phorodon humuli: alatae


Phorodon humuli: galls on Prunus armeniaca



slight leaf curl. Aphids 2-3 mm, pale green to yellowish green, rahter shiny, with three darker green dorsal length lines.

host plants

Rosaceae, monophagous

Prunus armeniaca, cerasifera, domestica & subsp. insititia, japonica, mahaleb, salicina, spinosa.

on Humulus, secondary host plant

Phorodon humuli: gall on Humulus lupulus

Humulus lupulus, Berghuizen © Ben van As

Phorodon humuli: gall on Humulus lupulus

underside, with aphids

Phorodon humuli: aptera on Humulus lupulus

Humulus lupulus, Engeland, Hampshire, Brockenhurst © Bob Dransfield & Bob Brightwell, InfluentialPoints


aphids at the underside of the leaves and in the inflorescence cause appreciable malformations. The aphids, 1-2 mm, are pale green with darker green median and lateral length lines.

host plants

Cannabaceae, monophagous

Celtis occididentalis; Humulus lupulus.

The record of Cydonia oblonga and Symphoricarpos albus by Ripka ao probably are exceptional.


Both on the primary and on the secondary host this species plays a role as a virus vector.


Barbagallo & Massimino Cocuzza (2014a), Barbagallo & Pollini (2014a), Blackman & Eastop (2014), Börner & Franz (1956a), Buga & Stekolshchikov (2012a), Buhr (1964b), Danielsson (1974a), Dauphin & Aniotsbehere (1997a), Heie (1994a), Hellrigl (2004a), Houard (1908a), Lampel (1988a), Lampel & Meier (2007a), Mier Durante, Seco Fernández & Nieto Nafría (1989a), Müller (1986a), Nieto Nafría, Muñoz Martínez & Mier Durante (1987a), Osiadacz & Wojciechowski (2008a), Pérez Hidalgo, Martínez Peláez & Nieto Nafría (2001a), Petrović (1998a), Rakauskas & Trukšinaitė (2011a), Ripka, Reider & Szalay-Marzsó (1998a), Suay Cano & González Funes (1998b), Tambs-Lyche (1970a), Tavares (1905a), Tomasi (2014a), Weis (1955a), Wojciechowski, Depa, Halgoš ao (2016a).

Last modified 22.viii.2019