You are viewing 1 of your 2 free articles

You’ll need to join us by becoming a member to gain more access.
Already a Member?

Login Join us now

Talking Agronomy with Sarah Symes: Struggling to find spray days


This autumn has seen a struggle to find spray days; if it hasn’t been too wet to travel then high winds have stopped play.

Twitter Facebook
Share This

Struggling to find spray days #talkingagronomy #arable

This has left a few late-drilled cereal crops not receiving a pre-/post-emergence residual spray but there is still time, although the ground in most places has been left too wet to travel.


The combination of October-sown crops with glyphosate pre-drilling has resulted in lower black-grass populations to be dealt with this autumn.


The early residual application, along with a top-up residual application three to four weeks later to already unhealthy looking black-grass plants, will mean we will be in a far better position going into the spring, and be less reliant on Atlantis (iodosulfuron + mesosulfuron) working well.


Late September-grown wheat in bad black-grass situations has proved to be more of a challenge – the warm weather has allowed black-grass to get away and in some cases a Liberator (flufenacet + DFF) + Atlantis application has been made.


Warm temperatures causing problems

The warm October temperatures have also allowed for good uptake of Spitfire (florasulam + fluoroxypyr) on volunteer beans.


Mildew has been very apparent in all susceptible crops, but the few frosts we have had has slowed the spread.


Given the time of year we will not be making any recommendations, but will simply wait and see what winter brings, and keep an eye out for it as we plan our T0s next March.


Slugs have proved to be a problem yet again this year, especially with the rise in no-tillage systems. It has been mainly patches rather than whole fields and hopefully, if we get the predicted coldest winter since the start of time, then there will not be too much of a problem through the winter.


See also: Slug control with zero metaldehyde


We have had to use a mixture of metaldehyde and ferric phosphate to keep within the metaldehyde stewardship guidelines. Farms where metaldehyde is a particular problem in their catchment have been using ferric phosphate-based pellets to protect the watercourses from contamination.


Late-sown OSR crops, which were at one time looking precarious, are starting to catch up with the earlier-sown crops. We have seen bursts of phoma, which has warranted two sprays this autumn, especially on the smaller crops which are more prone to the risk of stem canker developing.


In the first week of December we finally saw soil temperatures drop low enough for Kerb (propyzamide) and Astrokerb (aminopyralid + propyzamide) applications, this was in some cases tank mixed with Proline (prothioconazole) or Refinzar (penthiopyrad + picoxystobin) for top up on phoma protection/eradication and add light leaf spot protection.


We have started to make bifenox recommendations in the hope charlock will be controlled.


January 15 marks the end of the closed period for spreading manufactured nitrogen on both grass and tillage land so we are sorting out fertiliser and manure management plans for the coming spring.


High yields this year have provoked a debate on extra nitrogen usage in milling wheats. Group 1s will need to have at least 300kg N/hectare in order to maintain yields of nine-10 tonnes/ha and achieve protein level of 13%, but obviously in such years as the one we have just had, high yields of 11-12t can be achieved but the protein levels are diluted.


With the increase in spring-sown crops due to black-grass issues, ecological focus area rules or wanting to spread workload, many will be spraying off stale seedbeds.


See also: Managing spring crops to reduce weed burden


This time of year I expect glyphosate to take at least 10-14 days to work where growth is slow, maintain rates of three-four litres/ha. Spring rotations will also be finalised and seed starting to be ordered.


We will be hosting a number of NRoSO training days throughout January and February in the South, so if you would like to book a place please get in touch.



Twitter Facebook
Rating (0 vote/s)
Post a Comment
To see comments and join in the conversation please log in.

More Insights

Fresh approach gives boost to maize yields

An increase in cow numbers and the desire to have sufficient maize to ensure year round feeding meant the Roberts family had to fundamentally review their approach to growing the crop. Jeremy Hunt reports.

Grazing winter cereals with livestock

A technique widely used in Australia and the US could help boost black-grass control. Chloe Palmer finds out more.

Stewardship scheme boosts cirl bunting population

Targeted arable management by farmers in the South West has helped a small farmland bird come back from the cusp of vanishing from Britain. Melanie Jenkins finds out more.

An inspiration to agriculture

The new Master of the Worshipful Company of Farmers had never been on a farm until the age of 23. Alan Stennett reports.

Lamma Preview 2017: The need to know on drones

If a drone is on your 2017 shopping list, then a visit to Lamma could help with your research. Geoff Ashcroft reports.
FG Insight and FGInsight.com are trademarks of Briefing Media Ltd.
Farmers Guardian and FarmersGuardian.com are trademarks of Farmers Guardian Ltd, a subsidiary of Briefing Media Ltd.
All material published on FGInsight.com and FarmersGuardian.com is copyrighted © 2016 by Briefing Media Limited. All rights reserved.
RSS news feeds