Eriosoma grossulariae (Schüle, 1887)

on Ulmus

gall

aphids on leaves that, at only one side of the midrib, are almost totally rolled in downwards and yellowish in colour. The aphids (immature alatae) are light green (contrary to E. ulmi that makes similar galls, and has often been confused with grossulariae).

primary host plants

Ulmaceae, narrowly monophagous

Ulmus americana, glabra, minor, procera.


on Ribes

gall

aphids at the roots. They are 1-2 mm large, yellowish-white to pale red in white wax wool.

secondary host plants

Grossulariaceae, monophagous

Ribes sanguineum, uva-crispa.

Rarely Ribes rubrum.

references

Bellmann (2012a), Blackman & Eastop (2014), Carter & Danielsson (1993a), Danielsson (1982a), Heie (1995a), Nieto Nafría, Mier Durante, Binazzi & Pérez Hidalgo (2002a), Pérez Hidalgo, Martínez Peláez & Nieto Nafría (2001a), Pérez Hidalgo & Umaran del Campo (2013a), Petrović (1998a), Redfern & Shirley (2011a), Ripka, Reider & Szalay-Marzsó (1998a).

mod 31.i.2019