ASTER YELLOWS
|
Wheat

SOURCE:
L. N. Chiykowski
DISEASE:
Aster yellows
HOST:
Wheat
(Triticum aestivum)
Healthy head (left) and diseased head (right). Diseased seedlings may die within 2 to 3 weeks. Infected heads of surviving plants are small and sterile, with distorted awns.
PATHOGEN:
'Candidatus Phytoplasma asteris'
PATHOGEN SYNONYM:
Phytoplasma Aster yellows group