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justal
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| posted on 21-9-2010 at 08:32 |
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Mountain bikers urged to help beat deadly tree disease at Nant yr Arian
Mountain bikers urged to help beat deadly tree disease at Bwlch Nant yr Arian
[copied off singletrackworld]
Mountain bikers are being asked to do their bit to minimise the impact of a fatal tree disease that has now been discovered in mid
Wales.
An outbreak of Phytophthora ramorum has been found in a small number of Japanese larch trees at the Bwlch Nant yr Arian visitor centre,
near Aberystwyth, which is home to three single track mountain bike routes.
P. ramorum is a fungus-like pathogen that kills many of the trees that it infects. Infected Japanese larch trees produce high numbers
of the spores that spread the disease with the result that a lot of these trees can become infected very quickly.
In an attempt to minimise the impact of the outbreak at Bwlch Nant yr Arian, Forestry Commission Wales will fell up to 60 trees that
are currently infected. This work will take a couple of weeks to complete and will be carried out with as little disruption as possible
to visitors.
P. ramorum is not harmful to humans or animals and all walking and mountain bike trails, plus the visitor centre, remain open to the
public.
While the felling of infected trees takes place, the last section of the three mountain bike trails will be closed for a short period
of time and a diversion put in place.
Bwlch Nant yr Arian is managed by Forestry Commission Wales on behalf of the Welsh Assembly Government.
Mountain Bike Ranger, Andy Braund, is appealing to mountain bikers to help keep the routes at Bwlch Nant yr Arian open by following
some simple biosecurity measures.
Andy said, “We are working hard to minimise the impact of this serious disease on our woodlands and the support of the mountain
bike community is vital.
“Everyone who works in or visits the affected woodlands is being asked to observe some simple biosecurity measures so that they
don’t inadvertently spread this pathogen.
“For mountain bikers, this means keeping to the trails and washing their bikes and kit thoroughly to remove all dirt and plant
material before they leave the forest – a bike wash is available at the visitor centre. They should also wash their clothing
between visits to forests.”
Forestry Commission Wales staff will continue to monitor trees at Bwlch Nant yr Arian for signs of infection but, in many cases,
symptoms may not become evident until next spring when larch trees –which are deciduous conifers – renew their needles.
Andy added, “Phytophthora ramorum is a serious disease and, by felling infected trees, we hope to limit the production of the
spores that spread the infection.
“As Bwlch Nant yr Arian is a popular site, it is also important that we fell infected trees before they die and become unstable,
thus presenting a potential risk to visitors.”
P. ramorum was first discovered on Japanese larch trees in Great Britain in 2009 in South West England. It was then found on larch in
public woodlands in South Wales in June 2010.
Further information about P. ramorum can be found on the Forestry Commission’s website at
www.forestry.gov.uk/pramorum
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© Alan R Cole 2000... justal@forces-of-nature.co.uk
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