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Farmers move to improve pre-em applications

Harry Fordham Low Slow Covered meeting
Find out more about #LowSlowCovered - the techniques involved, top tips for timely application and benefits that can be achieved for pre-em application

A quarter of UK farmers have made changes to their spraying operations to get better performance from pre-emergence herbicide applications.

Heeding the advice and results of the #lowslowcovered campaign, over 90% now spray at less than 12 km/hr and 84% have increased spray water volume, to at least 150 l/ha.

Syngenta Eastern Counties Application Specialist, Harry Fordham, will be using a series of NRoSO registered application meetings across the region, to highlight the techniques involved, top tips for timely application and benefits that can be achieved for growers.

Syngenta Eastern Counties Application Team #lowslowcovered Meetings

21 June

Swineshead, Lincs


25 June

Stallham, Norfolk


1 July

Boston, Lincs


Events are free and open to all farmers, spray operators, contractors and agronomists.

Call 0800 652 4216 for more information and to book a place, using the relevant CMP- reference number, or contact your Syngenta Area Mananger. NRoSO points are available.  


“Most farmers are aware of the Go Low; Go Slow; Get Covered campaign, which focusses attention on fine-tuning application techniques to achieve consistent grass weed control,” he reported.

“Results of application trials on the Barton Black-grass Focus Site have repeatedly shown that spraying at 12 km/hr or less and maintaining a level boom at 50 cm above the surface achieves better results with any pre-emergence herbicide application.”

Using higher water volume, ideally at 200 l/ha, has also been shown to achieve more consistent results. “The survey of farmers’ actions highlights the move to higher water rates, and the reports have all seen improvements in grassweed control. The challenge is spraying efficiency, but there are lots of measures we are looking to share that can help to achieve it.”  

Harry Fordham Low Slow Covered meeting

Furthermore, the trials have shown that new 90% Drift Reduction Technology nozzles can reliably achieve optimum high levels of grass weed control in all conditions.

“Managing drift is a key component of effective pre-em application,” advised Harry.

“Results of new trials, where wind speed was measured at the time of application, has demonstrated the effects of gusty wind moving the spray pattern along the boom on weed control.

“Even on a good spray day, with average wind speed of 1.6 m/s, there were gusts of between 0.5 to 8 m/s. Using 90% DRT helps to better keep a pre-em spray on target for more even coverage.”

Low Slow Covered three element graphic

Over 24,000 Teejet 90% DRT nozzles have been sold in the past two years under the Syngenta Nozzle Offer. That’s sufficient to refit 1500 30-metre sprayers, capable of covering 750,000 hectares of pre-emergence application.

Visit the website Application Zone for more information and ideas, or follow #lowslowcovered