Cacopsylla ulmi (Förster, 1848)

on Ulmus

Ulmus laevis, Hungary, Mosonmagyaróvár, 3.v.2016 © László Érsek

larvae on a fruitlet

larvae

larvae

larva

adults

gall

hypophyllous larvae produce much honeydew. Leaves wither and become disfigured.

hostplants

Ulmaceae, monophagous

Ulmus glabra, laevis, minor.

In the summer the adults pass through a summer diapause (“parapause”); at that time they do not feed and may occur on different plants.

references

Burckhardt (1983a, 2002a), Conci, Rapisarda & Tamanini (1992a), Hodkinson & White (1979a), Jerinić-Prodanović (2006a, 2010a), Lauterer (2011a), Malenkovský & Lauterer (2012a), Ossiannilsson (1992a), Seljak (2006a), White & Hodkinson (1982a).