29 January 2015 | Online since 2003



Spring barley demands vigilance following recent rain


Growers are being urged of the need for vigilance in this season’s spring barley to ensure a timely start of post-emergence weed control strategies over the coming weeks.

Rotam technical manager James Anderdon is warning that the favourable seedbed conditions at drilling, combined with recent changeable weather conditions, could risk ill-timed herbicide applications and subsequently difficult to control weed populations.

"Planting has been off to a good start, particularly in the midlands and south east. The considerable period of reasonably fine, dry weather has enabled the majority to complete drilling before the end of March, planting into good seedbeds without delay," explains James.


"But recently we have seen considerably more rain, particularly in the south east. This, together with much warmer soil temperatures compared with this time last year, means conditions are likely to stimulate a scenario of strong crop growth and rapid weed emergence.

"There is a risk of weeds coming through more strongly than usual," he notes.


This current period of unsettled weather comes at a time when crops are still at risk, explains James. "They are still to pass the stage of growth where they are able to out-compete arising weed populations.

He therefore advises vigilance to time herbicide treatments correctly and to be ready to treat post-emergence, considering the use of a sulfonylurea as either a straight or in a mix," notes James.

"Sulfonylurea herbicides based on metsulfuron, such as Savvy Premium, Ergon and Boudha offer attractive treatment options with a high level of effect against a number of key target species including spring germinating mayweed and polygonum species such as knotgrass, redshank and bind-weed."

According to James the timing of post-emergence applications are paramount to deliver cost effective control of key weed species at their most susceptible growth stages.

"Too late and the effectiveness of the treatment will wane as weeds develop reduced sensitivity. But too early and you risk later emerging weed flushes which miss the treatment entirely," he explains.

"Treatment timing will be largely dictated by the species present which will have varying rates of growth. Applications to weeds at the 4 leaf stage up to the 6 leaf stage is ideal. Beyond this timing, the sensitivity of some weed species will be lost, and they become more difficult to control."

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


14 January 2015
Operations Manager
Country Supplies is based near High Wycombe, Bucks. and provides a broad range of landscape materials to the general public a...

22 January 2015
Sainsbury's Sampling Ambassador P109
Cosine are looking for Sainsbury's In-Store Sampling Ambassadors at the Winchester and Badger Farm store. As the sampler you ...

23 January 2015
Assistant Area Housing Manager (Limes Farm)
Assistant Area Housing Manager (Limes Farm). The Council is recruiting an Assistant Area Housing Manager for the Limes Farm E...

21 January 2015
Class Teacher - Bitterne Park Primary School . 
Nicholas, Partnership Manager, Bitterne Park Primary School, Manor Farm Road, Bitterne, SO18 1NX. School name Job Title Class...

17 January 2015
Panel Wirer
Our prestigious industrial systems manufacturing client is looking for a Panel Wirer/Electrical Fitter for contract workCandi...




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...