An agricultural sprayer arrangement includes a chassis a ground engaging traction member carried by the chassis a liquid tank carried by the chassis a boom carried by the chassis a conduit associated with the boom in fluid communication with the liquid tank that acts as a fluid flow path a nozzle having an inlet in fluid communication with the conduit a first flow sensor placed upstream of the inlet in the fluid flow path that provides a first flow signal a second flow sensor placed downstream of the inlet in the fluid flow path that provides a second flow signal and an electrical processing circuit coupled to the first flow sensor and the second flow sensor that is configured to compare the first and second flow signals to determine a flow rate decrease and issue an alarm if the flow rate decrease is less than a predetermined threshold level.
