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Scald

Scald is probably the most well-known and encountered barley disease in NZ.

LOOK OUT FOR:

Pale green, ‘watersoaked’ lesions

Mature lesions showing brown borders with a pale centre

RISK FACTORS:

Cool, moist conditions

Scald Barley
Scald Barley

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.