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Citrus disease/pest identification

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Alnchris starts with ...
Hi,

I have a few young citrus trees which now have these brown, circular rings on the leaves. Have been looking for pictures of trees with a similar problem but can't find anything like it.

I have several dwarf valencia oranges, and a couple of young full size citrus trees (washington navel and grapefruit). All seem to have these 'rings' on the leaves and the leaves curve a bit.

Any idea what they could be? Haven't seen anything that matches it on the internet. The 2nd picture shows the leaf damage well. Almost perfect circular rings.

Have sprayed with both Neem and a potassium bicarbonate fungicide but with the rain we've been having here in Sydney I doubt it's stayed on for long. Anyone familiar with this that could tell whether it's a pest or a disease? Or a virus? And how to treat it?

Cheers,
Pictures - Click to enlarge

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Picture: 2

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About the Author
Alnchris
PLUMPTON,2761,NSW
30th November 2021 4:54pm
#UserID: 28102
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Original Post was last edited: 1st December 2021 11:54pm
TyalgumPhil says...
Did the Neem oil help at all?
About the Author
TyalgumPhil
MURWILLUMBAH,2484,NSW
4th January 2022 5:41pm
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