Initial symptoms are pale green, “watersoaked” lesions. As
these mature they develop a brown border with a pale centre.
Lesions often coalesce which leads to the leaves dying.
The initial infection source is stubble debris. Once a crop is
infected, spread is by rain splash and dew.
Scald thrives in cool, moist conditions and is often seen
during winter and early spring.
Yield losses of 40% have been recorded.