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<pre>> Has your leaf got black spots and withered up look? if so
> I strongly urge to read the book produced by the South Australian Research
> and Development Institute on Diseases and Pests - Grape Production series
> book number 1 then refer to page 25/26/27 disease commonly known as BLACK
> SPOT...
> Disease cycle survives for at least 3 - 5 years in cankers. This is the
same
> as on grapes. further through this book also gives you a spray program for
> NZ & Aust Try spraying with Delan Fungicide.
> Hope this answers how and why.
> good luck - Ron

Ron,

To the best of my knowledge Delan is not approved for use on olives in
Australia. It will probably work as will several other fungicides including
Mancozeb, but unless the NRA has issued a temporary permit you can't use it.

Susan Sweeney in South Aust has done a lot of work on behalf of the AOA on
permits, and would be the best to ask, along with Damian Conlan in NSW for
the Department of Ag.

Regards,

Mike Wilson.
</pre>
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