21 April 2015 | Online since 2003



30 March 2011|Forestry,News

Ramorum disease found in European larch trees for first time


Ramorum disease, which has caused the early felling of about 2 million Japanese larch trees in the UK, has now been found infecting the European larch species for the first time.

Scientists from the Forestry Commission’s research agency have confirmed infection by the pathogen Phytophthora ramorum in a European larch (Larix decidua) in woodland near Lostwithiel in Cornwall, south-west England, in an area with infected Japanese larch trees nearby.

Ben Jones, the Forestry Commission’s Phytophthora operations manager, said,

"Although it is bad news that this lethal pathogen has proved able to infect yet another tree species, it was not entirely unexpected, given the physiological similarities between European and Japanese larch."

Britain’s woodland owners and managers have been on high alert since P. ramorum was first found infecting and killing thousands of Japanese larch (Larix kaempferi) trees in south-west England in 2009, and Mr Jones added,

"It is too soon to know how susceptible European larch is to P. ramorum infection, or whether it will be a sporulating host, that is, whether it will produce the spores that spread the pathogen; and if it is, how heavily it will sporulate.

"However, in light of this development we are urging woodland managers once again to be diligent about inspecting their trees regularly for signs of disease and decline, and to report any suspicious symptoms to us.

"We will be resuming aerial surveys soon, after the trees have flushed with new needles, to look for larch woodlands with symptoms of dieback, and following up with ground inspections to identify the cause of the symptoms."

The symptoms of P. ramorum infection in larch include excessive resin bleeding, sunken or cankered areas of bark, wilting of the needles with the tree canopy turning grey, and branch and shoot dieback with a distinctive ginger colour.
• The Forestry Commission has published a comprehensive update report on the outbreak of P. ramorum on larch, which is available from a link at www.forestry.gov.uk/pramorum. And two grant aid packages for helping the owners of infected larch trees have been extended until March 2012 - details are available from the same pages.


Download




Comments


No comments posted yet. Be the first to post a comment

To post comment without approval login or register

Display name

Please enter your name

Email (optional)
Comment

Please enter your comment

Post Comment

Your comment submitted successfully.Please wait for admin approval.

Some error on your process.Please try one more time.



Jobs


10 April 2015
Team Leader
Day to day activities on the farm include feeding, egg collection, bird weighing and data collection. Reporting to the Farm M...

1 April 2015
Clerical Opportunities - Early Shift or Night Shift Available!
We are currently recruiting for a large project starting on the 11th May for up to 7 weeks based at Kiln Farm, Milton Keynes....

20 April 2015
Assistant to Farm Manager - Nr Hungerford
ASSISTANT TO FARM MANAGER. We are based near Hungerford farming 5,000 acres over 3 estates....

7 April 2015
Analyst Programmer (.NET Developer)
Knowledge or experience of web servers and farms. Established in 2007 Aurum is the largest prestige and luxury jewellers in t...

1 April 2015
Milker/General Farm Worker
Due to expansion a new position has been made on this high yielding, high herd health status dairy farm in the cream of South...



Top stories you may have missed
10 April 2015 | Agri Safety

Final phase of Scotland's war on BVD

The permanent eradication of Bovine Viral Diarrhoea [BVD] in Scottish cattl...


10 April 2015 | Dairy

Dairy farmers competitiveness will be te...

The abolition of milk quotas in Europe on 1st April has resulted in a numbe...


10 April 2015 | Cattle

EU milk sector growth 'dependent on expo...

The top 14 milk producing countries in Europe will increase their productio...


10 April 2015 | News

Could the rural vote hold the key to the...

Matt Ware is the NFU's head of government and parliamentary affairs, based ...


10 April 2015 | Arable

Action needed to boost farmgate prices i...

There is a 'desperate need' to improve farmgate returns given low incomes a...


9 April 2015 | Arable

OSR damage risks early Sclerotinia infec...

Rapid stem extension, after a slow start to spring, is likely to create spl...


9 April 2015 | Finance

Time for a farm rent revolution?

The time has come for landlords to expect to see reductions in farm rents, ...


8 April 2015 | Cattle

Cogent strengthens reputation for high c...

Cogent’s reputation as a source of the highest calibre sires has been enhan...


8 April 2015 | Arable

Exotic plant fungus a 'serious threat to...

The spread of exotic and aggressive strains of a plant fungus is presenting...


7 April 2015 | Animal Health

Share information to tackle food fraud, ...

The FSA’s new Food Crime Unit wants the industry to share information, some...