ASTER YELLOWS
|
Squash

SOURCE:
S. Miller
DISEASE:
Aster yellows
HOST:
Squash
(Cucurbita sp.)
Diagnostic characteristics for the disease are yellowing of young leaves, proliferation of secondary shoots, and rigid erect habit. Leaves are misshapen and smaller than normal and have stiff, thick laminae.
PATHOGEN:
'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM:
Phytoplasma Aster yellows group