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<pre>I have recently noticed some sparse white and brown spots on a few leaves of
a 2 or 3 trees in our grove. They appear to resemble Oleander Scale (Plate
17.10) of the UC Olive Production Manual.

Has anyone any experience of this in Australia or the Hunter Valley? The
spots seem quite innocuous, but are they? Will spraying with
white/petroleum oil help the situation?

I would appreciate any comments or suggestions. Thank you.

Liane Heinke
Hunter Valley, NSW
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<pre>Liane,
A friend of mine who has Barnea in the Souhertn Highlands region had the
same white spots ( a bit like a drop of ink on a blotter) and had it
identified as a harmless thrip. It was more prevalent in dry conditions such
as we are now experiencing and is more common on white flowers. In this case
they had planted clover beneath the olives and were letting it go to seed
and hence had a lot of white clover flowers in close proximity to the olive
leaves. The thrip seems to leave of its own accord and does no lasting
damage. We are north of the Southern Highlands and also have seen the odd
leaf with it and have basically ignored the problem as we have more pressing
problems with olive lace bug and peacock spot.
Regards
David Wilson
----- Original Message -----
From: "Liane Heinke" <heinke@one.net.au>
To: <OliveOil@egroups.com>
Sent: Tuesday, January 02, 2001 9:54 PM
Subject: [OliveOil] White spots


> I have recently noticed some sparse white and brown spots on a few leaves
of
> a 2 or 3 trees in our grove. They appear to resemble Oleander Scale (Plate
> 17.10) of the UC Olive Production Manual.
>
> Has anyone any experience of this in Australia or the Hunter Valley? The
> spots seem quite innocuous, but are they? Will spraying with
> white/petroleum oil help the situation?
>
> I would appreciate any comments or suggestions. Thank you.
>
> Liane Heinke
> Hunter Valley, NSW
>
>
>
>
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>
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<pre>David
Thank you for your advice. We are experiencing dry conditions but our clover is
not flowering. After further inspection , I too thought it looked harmless and
did nothing about it. As you say there are more pressing things to do.

Best wishes
Liane Heinke


[Non-text portions of this message have been removed]
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