Cacopsylla picta (C. costalis) is a vector of apple proliferation phytoplasma in Germany
Since 2000, a serious epidemic of apple proliferation phytoplasma (EPPO A2 quarantine pest) reappeared in south-western Germany. In earlier studies, it was shown that a psyllid, Cacopsylla costalis (Homoptera: Psyllidae), was a vector of the disease in northern Italy (see EPPO RS 2001/068). Recent studies showed that the same species C. picta (synonym C. costalis) is also a vector of apple proliferation phytoplasma in Germany.
Sources
Jarausch, B.; Schwind, N.; Jarausch, W.; Krczal, G. (2003) First report of Cacopsylla picta as a vector of apple proliferation phytoplasma in Germany.
Plant Disease, 87(1), p 101.