Spiroplasma citri and its vectors

Sweet orange tree infected by S. citri. Note rosettes of
cup-shaped leaves and the presence of off season flowers
and fruit at all stages of maturation.
J.M. Bové - INRA Bordeaux (FR)

Sweet orange tree infected by S. citri (left), showing stunting as compared to the healthy tree (right). Note the
rounded shape of the infected tree.
J.M. Bové - INRA Bordeaux (FR)

Normal seeds from a healthy fruit (upper row);
partially aborted seeds from a S. citri infected fruit (lower row)
J.M. Bové - INRA Bordeaux (FR)

Lobsided fruit from a sweet orange tree infected by S. citri.
Thickening of the albedo at the peduncular end can be observed
while the albedo at the stylar end is very thin.
J.M. Bové - INRA Bordeaux (FR)

Neoaliturus haematoceps, vector of S. citri in the
Mediterranean area and western Asia. Absent in America.
Danet INRA Bordeaux (FR)