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Oilseed Rape Application

For grass weed control in oilseed rape, operators face the extra problem of crop shading emerging target seedlings – the best rates of control are achieved by early applications at the one to two leaf stage. Finer droplets are required to wet shiny grass leaves and generate sideways movement to get under leaves. As the crop progresses through the growth stages the canopy becomes closed to apply fungicides bellow the canopy the Amistar nozzle is recommended.

 

TimingWater volume (l/ha)*Forward speedBest nozzleReduced drift option
Pre-em herbicides100-200 l/ha12-14 km/h3D nozzle alternating forwards and backAMISTAR nozzle
Post-em herbicides100 and above12-14 km/h3D alternating forwards and back3D nozzle (worst case AMISTAR nozzle)
All fungicides100 and above12-14 km/hAMISTAR nozzlesAMISTAR nozzle
Pollen beetle100 and above12-14 km/h3D alternating forwards and backAMISTAR nozzle

*Please refer to the product label for water volumes.  Growers can reduce water volumes as long as they adhere to the HSE/DEFRA Code of Practice for Using Plant Protection Products. Please refer to paragraph 4.6.4, page 81 of the HSE/DEFRA Code of Practice for Using Plant Protection Products.