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Conclusion

In two trials, it has been investigated whether it can be an advantage to band spray against leaf diseases rather than standard broad application. Several nozzles have been tested and compared with relevant reference nozzles. There have generally been high levels of disease in the trials. The differences found between treatments have been small. It seems that it has been an advantage to band spray where a low amount of water has been used. The trials will be repeated in 2022, so there will be more data to conclude from.