Ash dieback identification

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Ash dieback identification
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Hairyloon

Joined: 20 Nov 2008
Posts: 15425
Location: Today I are mostly being in Yorkshire.

Posted: Thu Nov 08, 12 8:36 am Post subject:

gritstone wrote:

There must be resistant strains surely?

They are hoping that the British trees are more rersistant than Jonny foreigner. Suspect that is nowt but jingoism, but we can hope I am wrong. It does happen sometimes.

But why on Earth were we importing saplings anyway?
I know that ash trees are desparately difficult to propagate, but even so.

Truffle

Joined: 07 Feb 2006
Posts: 526

Posted: Thu Nov 08, 12 8:52 am Post subject:

Hairyloon wrote:

gritstone wrote:

There must be resistant strains surely?

As always, it comes down to economics.

Tree seed is collected in the UK in specific regions. The bulk of this is shipped to Europe (primarily Holland) and propagated for planting stock before begin shipped back to the UK. Consequently, for example, you'll be buying 'UK seed region 403 trees' from a UK distributor, that were grown in Holland.

As with ornamental plants, its very hard for the UK to compete. Ash is very easy to propagate but when UK planting-ready stock is being brought into the UK at 9p per plant (delivered), its incredibly hard to compete.

It would hugely help if people bought stock certified as having been grown in the UK only, but then we are back to economics...

truffle

www.PlantationSystems.com

Hairyloon

Joined: 20 Nov 2008
Posts: 15425
Location: Today I are mostly being in Yorkshire.

Posted: Thu Nov 08, 12 9:27 am Post subject:

Truffle wrote:

Ash is very easy to propagate but when UK planting-ready stock is being brought into the UK at 9p per plant (delivered), its incredibly hard to compete.

How do the Dutch manage to do it so much cheaper?
What do you mean by "planting ready stock" 1 year old? 2? 3?

Treacodactyl
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Joined: 28 Oct 2004
Posts: 25795
Location: Jumping on the bandwagon of opportunism

Posted: Thu Nov 08, 12 12:02 pm Post subject:

gritstone wrote:

I've got about 1000 ash trees 10-15 years old on poor ground so not big about 20 odd feet. What do you think is the best thing to do.

We're in a similar situation with slightly bigger trees. We are lucky in having good mix of trees so we can decide to reduce numbers of one variety if we wish. I had decided to remove some of the alders, Scots Pines etc and leave the ash but now it will be the other way around.

I've just had an email update from Smallwoods who were at the government meeting yesterday. I looks like they are just going to remove nursery stock and recently planted trees looks like you should be ok. It also appears leaf litter is the main source of infection so hopefully timber extraction will be allowed.

However, until the government make an announcement I'd keep a good eye on the news.

cassy

Joined: 04 Feb 2008
Posts: 1047
Location: South West Scotland

Posted: Thu Nov 08, 12 2:13 pm Post subject:

I was going to plant more ash this winter so on a selfish note it's a bit of a shame there is a movement restriction, but I can see that bringing everything to a standstill while they figure out the best course of action is the right thing to do.

Our existing ash are all young trees, too young for coppicing.

I hope they don't opt for widespread removal and hope there is enough genetic diversity to provide resistant strains.

Treacodactyl
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Joined: 28 Oct 2004
Posts: 25795
Location: Jumping on the bandwagon of opportunism

Posted: Thu Nov 08, 12 5:21 pm Post subject:

Is there any possibility of starting off a nursery bed and collecting your own seed?

Having said that it seems to have been a terrible year for ash keys, last year many of our young trees produced keys and lots of the mature ones nearby did but this year there's none. I didn't see any while cycling around the lanes this afternoon either.

It might also be best to start thinking about what would be a good replacement, I would seriously consider sycamore if i was planting up a new area for firewood.

mochyn

Joined: 21 Dec 2004
Posts: 24585
Location: mid-Wales

Posted: Thu Nov 08, 12 5:26 pm Post subject:
We have several mature ash, one a giant. It would be tragic to loose him. Something I'm thinking about is lifting as may sapings as I can find and putting them in the polytunnel where they should be protected from wind-borne spores.

cassy

Joined: 04 Feb 2008
Posts: 1047
Location: South West Scotland

Posted: Thu Nov 08, 12 5:40 pm Post subject:

Treacodactyl wrote:

Is there any possibility of starting off a nursery bed and collecting your own seed?

Good plan, I'll have to go out at the weekend and see what I can find before it's too late in the season.

Treacodactyl wrote:

It might also be best to start thinking about what would be a good replacement, I would seriously consider sycamore if i was planting up a new area for firewood.

We've tried to keep a diverse mix but up till now I've been against sycamore as it's not native to the area. Perhaps it's time to reconsider.

Treacodactyl
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Joined: 28 Oct 2004
Posts: 25795
Location: Jumping on the bandwagon of opportunism

Posted: Fri Nov 09, 12 12:25 pm Post subject:

Ash dieback will not be eradicated according to Environment Secretary Owen Paterson.

From the BBC:

Quote:

Announcing the government's action plan to tackle the disease, Mr Paterson said efforts would focus on slowing its spread through the countryside.

Diseased young trees would be removed and destroyed, he added.

But the action plan does not aim to remove mature trees, which are important for wildlife.

It adds that efforts will also focus on developing resistance to the disease.

And the DEFRA press release: https://www.defra.gov.uk/news/2012/11/09/action-ash-tree-disease/

Nicky cigreen

Joined: 25 Jun 2007
Posts: 9881
Location: Devon, uk

Posted: Mon Nov 12, 12 5:46 pm Post subject:
and a case confirmed in Devon https://www.bbc.co.uk/news/uk-england-devon-20279644 we have lots of ash trees here - including a big one that is protected and would threaten a neighbours house if it became weak. we have ash saplings everywhere - have to pull them out of the garden as weeds.

sean
Downsizer Moderator

Joined: 28 Oct 2004
Posts: 42219
Location: North Devon

Posted: Tue Nov 20, 12 11:55 am Post subject:
A bit about its effects and how they're dealing with them in Denmark. BBC linky

Treacodactyl
Downsizer Moderator

Joined: 28 Oct 2004
Posts: 25795
Location: Jumping on the bandwagon of opportunism

Posted: Thu Dec 06, 12 4:21 pm Post subject:
Another update: https://www.bbc.co.uk/news/science-environment-20626053 And the latest DEFRA publication: https://www.defra.gov.uk/publications/files/pb13843-chalara-control-plan-121206.pdf (Which gives a definition of young trees as "generally those planted in the last five years")

Hairyloon

Joined: 20 Nov 2008
Posts: 15425
Location: Today I are mostly being in Yorkshire.

Posted: Thu Dec 06, 12 4:54 pm Post subject:

Quote:

The disease caught the UK unaware, scientific adviser, Prof Ian Boyd, told a briefing.

Other than various warnings over the past few years... not least the troubles in Austria, Belgium, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Italy, Latvia, Lithuania, Netherlands, Norway, Poland, Romania, Russia, Slovakia, Slovenia, Sweden and Switzerland.

ninat

Joined: 01 Feb 2009
Posts: 606
Location: Scotland

Posted: Thu Dec 06, 12 9:51 pm Post subject:
90% mortality means one in 10 will survive. Hopefully if left, the remaining ones will develop immunity. This sounds better than felling.

Hairyloon

Joined: 20 Nov 2008
Posts: 15425
Location: Today I are mostly being in Yorkshire.

Posted: Sat Feb 09, 13 11:27 am Post subject:
https://www.forestry.gov.uk/pdf/WorrellReport-ChalaraImpacts.pdf/$FILE/WorrellReport-ChalaraImpacts.pdf

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