UKTC Archive

RE: Polyphagous shot hole borer

Subject: RE: Polyphagous shot hole borer
From: Hare, Gareth
Date: Mar 06 2019 09:57:17
https://polyphagous-shot-hole-borer.co.za/

Good resource linked above. Although it identifies the source as a botanical 
garden, it doesn't say how the beetle got there. It appears that Oak and 
London Plane are hotels of choice for the little darlings. Also Box Elder 
which makes me think that Sycamore will be similarly favoured. Here's hoping 
it doesn't reach these shores.

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
[mailto:uktc-request@xxxxxx.tree-care.info] On Behalf Of Tim Moya
Sent: 06 March 2019 09:30
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: RE: Polyphagous shot hole borer

The article in The Times stated that Polyphagous has much less impact where 
it comes from in SE Asia because the trees there have adapted and become more 
resistant to the fungus carried by the insect. In spite of clear advice that 
we should be working towards a more diverse urban tree population to increase 
resilience to pests and diseases, it seems that little is done in practice 
and much (most?) of our new nursery stock is clonally produced and remains 
highly vulnerable to new or genetically mutated diseases. In other countries 
urban foresters publish diversity targets for their tree populations, but 
here, not so much.
Tim Moya 

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info <uktc-request@xxxxxx.tree-care.info> 
On Behalf Of Hare, Gareth
Sent: 05 March 2019 12:52
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: RE: Polyphagous shot hole borer

Bleak news. Not quite 'On the beach' but....

-----Original Message-----
From: uktc-request@xxxxxx.tree-care.info 
[mailto:uktc-request@xxxxxx.tree-care.info] On Behalf Of Bill Anderson
Sent: 05 March 2019 11:22
To: UK Tree Care <uktc@xxxxxx.tree-care.info>
Subject: Polyphagous shot hole borer

https://www.thetimes.co.uk/article/scientists-admit-defeat-as-beetle-wipes-out-trees-in-johannesburg-nzcspgltv

Seems we've got Emerald Ash Borer massing it's ranks to the north and this 
little blighter to the south.....

Bill.



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The UKTC is supported by Bosky Trees arboricultural consultancy 
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The UKTC is supported by Bosky Trees arboricultural consultancy
http://www.boskytrees.co.uk/