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Postby john797 » Thu Nov 08, 2012 9:57 am

Hi all, does anybody have info about the use of Ash timber that has been identified as having the latest dieback problems, if we get into a situation were trees are being cut down as part of the preventative messures, will we be able to use-store the timber for later use?
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Re: Ash

Postby Davie Crockett » Thu Nov 08, 2012 1:44 pm

From the DEFRA Web site:
Government scientists set out the most up-to-date understanding of the disease. Their assessment agreed with the earlier Pest Risk Analysis carried out in August and concluded that:

the spores are unlikely to survive for more than a few days;
spore dispersal on the wind is possible from mainland Europe;
trees need a high dose of spores to become infected;
the spores are produced from infected dead leaves during the months of June to September;
there is a low probability of dispersal on clothing or animals and birds;
the disease will attack any species of ash;
the disease becomes obvious in trees within months rather than years;
wood products would not spread the disease if treated properly;
once infected, trees can’t be cured; and
not all trees die of the infection, and some are likely to have genetic resistance.
Government scientists are working with their counterparts in other countries to learn from existing and emerging research and practical experience in combating the disease in countries which have had it for longer than the UK. Government scientific experts are also approaching companies with proposed treatment solutions for Chalara to rapidly evaluate their research to see if they have potential for further testing and development.

In short, it appears that the spores are spread from the leaves and that timber is usable if properly treated. (It doesn't specify what the correct treatment for affected timber is, but I'm guessing anti fungal/sterilising treatment).
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Re: Ash

Postby john797 » Tue Nov 27, 2012 1:06 pm

David. thanks for that, having been on the DEFRA site it would apear that there is a complete movment ban on all Ash at this time which could cause us some problems. i think that it is a wait and see situation" for the time being.
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