Pre-em herbicide spray trial reveals best nozzle choice
© Tim Scrivener© Tim Scrivener
Selecting the right combination of nozzle, adjuvant and water volume is key to maximising pre-emergence herbicide efficacy and staying on the right side of the rules this autumn.
One key factor in achieving good coverage is water volume and the narrow weather windows seen with later drilling means some farmers are tempted to use lower water volumes, such as 100 litres/ha, to maximise work rates.
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However, Agrii trials co-ordinator David Felce points to an Agrii trial showing that this volume only gave 55% control of blackgrass, even when using a mix of Luxinum Plus (cinmethylin) + Orient (pendimethalin + picolinafen).