A spray system associated with a vehicle configured to traverse a field, the spray system comprising: a reservoir adapted to contain therein a fluid to be sprayed; a pump associated with the reservoir and configured to selectively draw a flow of the fluid from the reservoir; a metering device disposed to control an amount of the flow of fluid; at least one spray nozzle disposed to receive the amount of the flow of the fluid; a heat exchanger disposed to alter a temperature of the amount of the flow of the fluid that is provided to the at least one spray nozzle; a spray controller associated with the metering device; a refrigeration unit associated with the heat exchanger; characterized by the spray controller being associated with the at least one spray nozzle; the refrigeration unit being responsive to a control signal from the spray controller; a temperature sensor disposed to measure a spray temperature of the amount of the flow of the fluid provided to the at least one spray nozzle and provide a spray temperature signal to the spray controller; an ambient temperature sensor disposed to measure an ambient temperature and provide to the spray controller an ambient temperature signal that is indicative of the ambient temperature; wherein the spray temperature is calculated in the spray controller based on the ambient temperature and a mass flow of the flow of fluid to be at most equal to a dew temperature; wherein the spray controller operates to provide the control signal to the refrigeration unit based on a desired amount of the flow of fluid that is provided to the at least one spray nozzle and based on a desired temperature of the flow of fluid, which desired temperature will provide the spray droplets that are at the spray temperature; and wherein the heat exchanger operates to cool the flow of the fluid such that spray droplets of the fluid injected through the at least one spray nozzle into an atmosphere have a spray temperature at least temporarily after injection that is below a dew temperature of the atmosphere into which the spray droplets are injected. a reservoir adapted to contain therein a fluid to be sprayed; a pump associated with the reservoir and configured to selectively draw a flow of the fluid from the reservoir; a metering device disposed to control an amount of the flow of fluid; at least one spray nozzle disposed to receive the amount of the flow of the fluid; a heat exchanger disposed to alter a temperature of the amount of the flow of the fluid that is provided to the at least one spray nozzle; a spray controller associated with the metering device; a refrigeration unit associated with the heat exchanger; characterized by the spray controller being associated with the at least one spray nozzle; the refrigeration unit being responsive to a control signal from the spray controller; a temperature sensor disposed to measure a spray temperature of the amount of the flow of the fluid provided to the at least one spray nozzle and provide a spray temperature signal to the spray controller; an ambient temperature sensor disposed to measure an ambient temperature and provide to the spray controller an ambient temperature signal that is indicative of the ambient temperature; wherein the spray temperature is calculated in the spray controller based on the ambient temperature and a mass flow of the flow of fluid to be at most equal to a dew temperature; wherein the spray controller operates to provide the control signal to the refrigeration unit based on a desired amount of the flow of fluid that is provided to the at least one spray nozzle and based on a desired temperature of the flow of fluid, which desired temperature will provide the spray droplets that are at the spray temperature; and wherein the heat exchanger operates to cool the flow of the fluid such that spray droplets of the fluid injected through the at least one spray nozzle into an atmosphere have a spray temperature at least temporarily after injection that is below a dew temperature of the atmosphere into which the spray droplets are injected.