A mobile spraying machine (102) and a control method for such is disclosed. The mobile spraying system (102) comprises a sensor (232) that generates a sensor signal indicative of ozone gas concentration； a power cable detection logic (236) that receives the sensor signal and, based on the received sensor signal, determines that a power cable (103) is proximate the mobile spraying machine (102)； an avoidance decision logic (238) that identifies an avoidance action in response to determining that the power cable (103) is proximate the mobile spraying machine (102)； and a control signal generator (206) that generates a control signal based on the avoidance action.
