Sequential death of Scots Pine

[daltontrees]

1 hour ago, Mark Bolam said:

Information about the tree pest great spruce bark beetle ( Dendroctonus micans )

 

I've only seen this in Scotland on Spruce so far. But once spotted it'sa hard not to see the next time. Wouldn't it have to be quite severe to girdle a tree? The ones I saw were from a new infection so I haven't seen the radial extent of tunneling under the bark. The exit holes are farily distinctive and the bleeding is a curious purple/lilac colour, almost invariably accompanied by resin runs.

[openspaceman]

The other thing that occurs to me  is group killing by lightning strike. It's not the direct hit which normally blows off a strip of bark from the sudden evolution of steam but the ground current that kills the surface roots. The only time I saw where this was the alleged reason a group in a 30m radius area were killed but they all seemed to die at once.

[Treerover]

Red needle blight ?

We’re in the Midlands , Warwickshire, so possibly too far up for that ?

[Treerover]

The other thing that occurs to me  is group killing by lightning strike. It's not the direct hit which normally blows off a strip of bark from the sudden evolution of steam but the ground current that kills the surface roots. The only time I saw where this was the alleged reason a group in a 30m radius area were killed but they all seemed to die at once.

I’m not sure this could apply due to the slow and consecutive death rate over a few years.

[Treerover]

Great spruce bark beetle (Dendroctonus micans) - Forest Research

WWW.FORESTRESEARCH.GOV.UK

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Information about the tree pest great spruce bark beetle ( Dendroctonus micans )  

It reads that rarely does the Beetle attack Pine in this country.
I remember felling trees with this Beetle over 10 years ago, and the beetles’ presence was quite evident , but I guess that could have been just that particular infestation perhaps

[Stubby]

3 minutes ago, Treerover said:

We’re in the Midlands , Warwickshire, so possibly too far up for that ?

First detected in Scotland in 2010 so no it is wide spread .

[Treerover]

First detected in Scotland in 2010 so no it is wide spread .

I’m back there Sunday so I’ll look at some of the remaining moribund trees for signs. Thank you Stubby

[Stubby]

4 minutes ago, Treerover said:

I’m back there Sunday so I’ll look at some of the remaining moribund trees for signs. Thank you Stubby

I'm no expert bud . Its all I could think of . It wiped out a plantation of Corsican down here .

[Rich Rule]

Could it be Pine Blister Rust?

 

It hammers the SP here in Norway.  
 

Does the outside of the bark go black and dusty?

[Will C]

Lawn fertiliser/moss killer. A contractor with a Green thumb franchise killed a pine and wrecked a London plane within a season of getting the lawn “care” contract at a old customer of ours. I’ve no proof but that was the only thing that changed.