Pacific Pests, Pathogens, Weeds & Pesticides - Online edition

Pacific Pests, Pathogens, Weeds & Pesticides

Kaupala (Gummy stem blight) (007)


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Fakamaopo’opo

  • ‘Oku mafola fakamamani lahi. Koe mahaki eni ‘oku mahu’inga ki he famili ‘o e meleni moe kiukamupa. (see Fact Sheet no.201)
  • Ko e faka’ilonga ile’ile ‘oku tupu vave ‘aupito, ‘uli’uli ‘i he lau, mingimingi pea mate. Faka’ilonga ‘oku mafahi e kau pea pikipiki hono huhu’a.
  • ‘Oku mafola ’a e fua ‘o e fangikasi, mei he fanga ki’i tangai ‘uli’uli ‘i he ‘ile’ila he lau mei he havili moe ‘uha.
  • Founga malu’i anga maheni: Feitu’u ‘oku ‘iai e lulunga ‘akau ‘oku fiema’u ke mama’o mei he feitu’u fai ai to, haka mao e kelekele pe koe me’a ke to ai, vakai’i e pulopula pe ‘oku ‘I ai ha faka’ilonga (spot) pea kapau ‘oku ‘i ai pea to’o, to fetongitongi faka ta’u 3 e ngoue, ‘oua ‘e to ofi ki ha ngoue meleni ‘oku ma’u he mahaki, tanaki mo faka’auha e veve ‘osi hono toli.
  • Founga malu’i ’aki e kemikale: coppers, mancozeb, pe chlorothalonil ʻi he ʻaho ʻe 7-10 kotoa pe, ʻo fakatatau ki he tu’u ‘a e ‘ea.

Common Name: Gummy stem blight (Kaupala).

Scientific Name: Stagonosporopsis cucurbitacearum. Previously, Didymella bryoniae. Also known by the asexual state, Phoma cucurbitacearum or Ascochyta cucumis. The latter is commonly found on plants in the field producing minute oval spores in round black structures in the leaf called ‘pycnidia’ that are just visible to the naked eye.

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