Sweet Orange Scab (SOS)

Regulation and Quarantine Boundaries

SOS disease on lime

The plant disease known as Sweet Orange Scab (SOS) is believed to be caused by the fungal pathogen Elsinöe australis, which results in the formation of pustules (small raised spots or rounded swelling) and lesions on the skin or rind of citrus fruit.

Quarantine Map Overview

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2025 SOS Overview