30 March 2015 | Online since 2003



25 March 2014|Arable,Cereal,Crops,News

Light leaf spot risk remains high


Risk of light leaf spot risk is high according to the 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 which 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


12 March 2015
Consultant Neuroradiologist
It comprises Barnet Hospital, Chase Farm Hospital, the Royal Free Hospital and more than 30 services in the community....

10 March 2015
Chef De Partie Straight Day Shifts £16k
Rustic wholesome food, all sourced locally, using produce from the farm. This well established restaurant has been establishe...

17 March 2015
John Deere Parts Apprenticeship
Public to locate suitable parts for farm machincary. John Deere Parts Advisor Apprenticeship....

20 March 2015
Service Controller
Mining, field service engineer, apprentice, diesel, Cambridgeshire, digger, dozer, dumper, excavator, komatsu, cummings, deut...

24 March 2015
Personal/Executive Assistant
Full dairy management for the GLC Division Manager and Operations Director, encompassing meeting requests & bookings in a...




Top stories you may have missed
23 March 2015 | Cattle

UK butchers face difficulties to recruit...

Butchers in the UK are losing a generation through lack of training opportu...


20 March 2015 | Arable

Dust - the secret fertiliser?

NASA research has revealed how dust blown from the Sahara desert helps supp...


19 March 2015 | Arable

The Budget 2015: A Farmer's Budget?

“In the run up to the Budget 2015 most commentators were predicting that th...


17 March 2015 | News

UK's first floating solar power system l...

The UK’s first fully operational floating solar panel system has been unvei...


13 March 2015 | Animal Health

Labour and Conservatives clash over badg...

Axing the badger cull in England and Wales will save more than £120 million...


12 March 2015 | News

Solar could be cheapest energy source by...

By 2025, solar power could become one of the cheapest forms of energy in ma...


11 March 2015 | Finance

English buyers turn their attention to S...

Demand for Scottish farm land remains strong and continues to be better val...


9 March 2015 | Cattle

2020 vision for the Welsh red meat indus...

The Welsh red meat industry should aim to increase sales by at least 34 per...


6 March 2015 | News

MP raises egg industry concerns on trans...

Fears about the impact that a proposed transatlantic trade agreement could ...


Stay safe and legal when flying drones

The use of Unmanned Aerial Vehicles and Unmanned Aircraft Systems - or dron...