Sydney NSW, Australia
Identification request
2017-12-12T08:00:00.0000000Z
   2
Coconut disease, Fiji - Request for identification

Dear Pestnetters,

Can anyone help me id the disease attached please.

Toloi Vasuidreketi
Plant Protection
Koronivia Research Station
Fiji

Posted on user's behalf

Fiji
Coconuts
Yellowing_leaves

Responses

   0
2017-12-16T14:00:00.0000000Z
Dear Toloi

Symptoms on these trees seem like coconut yellowing disease, caused by phytoplasma. But that must be verified through molecular analysis for we can see some fruits on trees (normally, they must fall down).

Thanks
-- 
Dr. Koffi Eric KWADJO

Posted on user's behalf
   0
2017-12-16T14:00:00.0000000Z

Is is truly a disease, or an outbreak of armoured scale insects? This is the second set of photos from Fiji with symptoms that could be an infestation of armoured scale on coconut.

Gillian Watson
California Dept. of Food & agriculture

Posted on user's behalf

Fiji
   0
2017-12-16T14:00:00.0000000Z

Dear Toloi

I think Gillian's suggestion is a good one. It's certainyl not bud rot caused by Phytophthora - see Konrad's photo of the problem in Pohnpei here: 


Also check if you have coconut leafminer. Mani and I saw serious symptoms of this on cycads beneath tall coconuts at Pacific Harbour recently.


Both these are in the app too

grahame
   0
2017-12-16T14:00:00.0000000Z
Thank you Gillian. I was suspecting it could be Phytophthora palmivora before visiting the infected site. Your id is taken on board during the visit for confirmation.

Thank you

Toloi

Posted on user's behalf