THE PRESENT INVENTION RELATES TO A MOTORISED FUMIGATION SYSTEM FOR PROVIDING FUMIGATION INTENDED TO CONTROL AGRICULTURAL AND URBAN PESTS IN OPEN SPACES, AND IN PARTICULAR SYSTEMS THAT PROVIDE FUMIGATION THROUGH A HOT- OR COLD-FOG GENERATION PROCESS, IN WHICH BOTH FOG GENERATION PROCESSES ARE BUILT INTO AND ASSEMBLED ON A LIGHT VEHICLE. THE SYSTEM ACCORDING TO THE PRESENT INVENTION COMPRISES THREE SUBSYSTEMS: A FIRST STORAGE AND PUMPING SUBSYSTEM (S1), A SECOND HOT FUMIGATION SUBSYSTEM (S2), AND A THIRD COLD FUMIGATION SUBSYSTEM (S3).