Sweetpotato leaf spot (208)
Pacific Pests, Pathogens and Weeds
- Widespread distribution. Asia, Africa, Caribbean, Oceania. On sweetpotato and wild relatives. A minor disease.
- Brown spots, round to irregular, sometimes with light brown centres, on the upper surface, brown or grey below. Sometimes merge.
- Spores on lower surface spread in wind.
- Cultural control: spots on older leaves so unlikely to affect yields of storage roots.
- Chemical control: none recommended.
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