Merchandise manager, Ben Otto (left), and Precision Ag Specialist, Jeremy Jones, both of Dalby Rural Supplies with the new Weedit autonomous spray unit on display at CRT FarmFest. The unit, which allows a tractor and spray to operate across the paddock without a driver, will also be demonstrated each afternoon in the main demonstration area. Not only is it a precision farm machine, thanks to the sensor (in the foreground), but is also reduces chemical cost and has proven quite effective in controlling weeds are resistant to chemical sprays. CRT FarmFest runs over the next three days, 20 km west of Toowoomba (Qld) on the Warrego Highway.