Pacific Pests, Pathogens and Weeds - Online edition

Pacific Pests, Pathogens & Weeds

Kangkong leaf spot (206)

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Photo 1. Leaf spot on kangkong (Ipomoea aquatica) caused by Cercospora ipomoeae.

Summary

  • Worldwide. In the tropics. On kangkong and relatives, mostly weeds. It has been reported on sweetpotato. A minor disease of old leaves.
  • Light brown spots with black borders, round to irregular, up to 5 mm. Centres sometimes fall out.
  • Cultural control: none recommended.
  • Chemical control: none recommended.

Common Name

Kangkong leaf spot

Scientific Name

Cercospora ipomoeae; also recorded as Cercospora bataticola.

AUTHOR Grahame Jackson
Information from O'Sullivan J et al. (undated) Sweetpotato DiagNotes: A diagnostic key and information tool for sweetpotato problems. (https://keys.lucidcentral.org/keys/sweetpotato/key/Sweetpotato%20Diagnotes/Media/Html/TheProblems/DiseasesFungal/CercosporaLeafSpot/Cercospora%20leaf%20spot.htm). Photo 1 Kohler F, et al. (1997) Diseases of cultivated crops in Pacific Island countries. South Pacific Commission. Pirie Printers Pty Limited, Canberra, Australia.

Produced with support from the Australian Centre for International Agricultural Research under project PC/2010/090: Strengthening integrated crop management research in the Pacific Islands in support of sustainable intensification of high-value crop production, implemented by the University of Queensland and the Secretariat of the Pacific Community.

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