30 January 2015 | Online since 2003



27 March 2014|Arable,Cereal,Crops,News

Light leaf spot risk remains high, according to forecast


Risk of light leaf spot is high according to an updated forecast from Rothamsted Research. The latest forecast takes into account winter rainfall from December 2013 – February 2014 and shows that risk remains high in all regions and has increased in the south due to heavy rain over winter.

“Growers may need to be particularly vigilant this spring,” explained Dr Neal Evans of Weather INovations (WIN) who put together the forecast. “I suspect the model is underestimating the amount of disease we are seeing. Light leaf spot incidence on pods at harvest last year was low, although stem incidence at the time was moderate to high.”

Pod incidence is one of the key inputs for the forecast as a measure of disease carry over from one season to another. For future years, it may be possible to combine stem and pod incidence, to tweak the model. This and other aspects of light leaf spot are being looked into be Dr Evans and his colleagues as part of HGCA project RD-2013-3814 (Investigating components of the oilseed rape light leaf spot epidemic responsible for increased yield loss to the UK arable industry).

In addition to WIN and HGCA, the project involves scientists from SRUC, ADAS, Rothamsted Research and technical input from Bayer CropScience. Commenting on light leaf spot levels in the field this season, ADAS’s Dr Faye Ritchie said:

“We saw the first signs of the disease at a low level at the end of January. In some fields the disease remains at a low level but in other, perhaps less sheltered fields, the rain has certainly driven the epidemic along and we see patches of diseased plants where rain-splash has spread the disease from initial foci”.

Dr Jon West, Rothamsted Research added "We were quite surprised when we assessed our experimental field plots this past week. Some varieties had very little infection whilst others had severe infections and it’s the severity of the infection that has an impact on yield loss. Overall the level seems moderately high this season but there’s definitely a large varietal effect”.

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


22 January 2015
DAFFODIL FLOWER CROPPERS NEEDED
CDS Labour is currently looking for experienced daffodil pullers to work on the field s on local farms in Spalding and Boston...

16 January 2015
International Account Executive
This is an excellent opportunity for an Account Executive to work for the UK’s number one dairy business and a company who be...

12 January 2015
Technical Assistant/Nutritionist – Pig with some Poultry
The company, part of Premier Nutrition, is owned by AB Agri Ltd, the Agriculture Group of Associated British Foods plc....

10 January 2015
Agricultural Property Solicitor - Norfolk
NORFOLK - AGRICULTURAL / PROPERTY Agricultural Property Solicitor We have been instructed by a well established multi office ...

19 January 2015
Band 7 Ward Sister/Charge Nurse - HSEP
It comprises Barnet Hospital, Chase Farm Hospital, the Royal Free Hospital and more than 30 services in the community....




Top stories you may have missed
12 November 2014 | Arable
GM crops 'good for farmers and the envir...

GM crops 'good for farmers and the envir...

GM crops are good for the economy and can reduce the amount of pesticides u...


6 November 2014 | Cattle
Smaller European markets drive beef expo...

Smaller European markets drive beef expo...

Demand from smaller European markets has helped drive strong growth for UK ...


6 November 2014 | Agri Safety
Lack of engineers a 'ticking time bomb' ...

Lack of engineers a 'ticking time bomb' ...

A lack of engineers, not enough people promoting the land-based industries ...


4 November 2014 | Bees and Beekeeping
Bee action plan due: Last chance for bee...

Bee action plan due: Last chance for bee...

Environment Secretary Elizabeth Truss is launching the National Pollinator ...


4 November 2014 | Arable
Experts welcome financial boost for youn...

Experts welcome financial boost for youn...

Agricultural specialists have welcomed a potential financial boost for youn...


3 November 2014 | News
Supermarket competition on prices 'risks...

Supermarket competition on prices 'risks...

As retailers continue to participate in a highly competitive race to the bo...


31 October 2014 | Arable
New Defra farm figures 'underline volati...

New Defra farm figures 'underline volati...

New farm business income data from Defra, which focus on income from March ...


30 October 2014 | Agri Safety
Agriculture remains one of UK's most dan...

Agriculture remains one of UK's most dan...

Agriculture has remained one of the industries in which workers are most li...


29 October 2014 | Finance
UK farmland prices see 'substantial grow...

UK farmland prices see 'substantial grow...

Prime arable land in the UK has seen a substantial year-on-year growth in p...


27 October 2014 | Arable
Satellites to help farmers pinpoint dise...

Satellites to help farmers pinpoint dise...

A new mobile app for farmers able to pinpoint and identify disease, pests a...