Bondi Junction NSW, Australia
Fact Sheets
2021-09-08T03:13:02.9902592Z
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Frangipani rust (243)
Pacific Pests, Pathogens and Weeds
Pacific Pests, Pathogens and Weeds

Summary

  • Widespread distribution. Asia, North America, Oceania. On frangipani, and Madagascan periwinkle. Spots yellowish-orange on the underside of leaves, bursting to produce powdery spore masses. Brown patches above. Usually, minor disease, although leaves fall earlier than normal. Unsightly.
  • Spread as spores by wind; leaf wetness to infect.
  • Cultural control: cuttings from disease-free trees; collect fallen leaves and burn; tolerant varieties.
  • Chemical control: nurseries: chlorothalonil, copper, or mancozeb (protectants); or oxycarboxin or tridimefon (eradicants).

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