Pre-emergence applications can be high risk for drift because bare soils release stored heat, causing air/spray to rise, and also because there is no crop to intercept the spray.
Small spray droplets are particularly susceptible to spray drift. Product drift not only reduces efficacy but also risks contaminating ‘non target’ areas.
Crop protection chemistry is already under significant political and public pressure so minimising residue detection through controlling drift is key to protecting products in the future.