© Benaki Phytopathological Institute
Milonas & Partsinevelos
20
cover. When larval development completes,
adults emerge and start infesting and feed-
ing in new host plants.
The main damage that it causes is tree
weakening by suction of sap, where in high
population density larvae produce large
amounts of waxy secretions and honeydew,
and the resulting sooty mould reduce pho-
tosynthesis, induce premature leaf drop,
growth reduce, branches and shoots die-
back and occasionally tree death (Brennan
et al
., 1999; Paine
et al
., 2006). Moreover, in
urban areas honeydew secretions cause
Figure 1.
Occurrence of
G. brimblecombei
in Greece.
Figure 2.
Glycaspis brimblecombei
adult.