Atomizer for spraying products for agriculture, in particular for treatments on plantations, which comprises: - a support frame susceptible of advancing on the ground in a travel direction (Y); - a containment tank for containing at least one liquid product to be dispensed, mounted on said support frame ; - ventilation means supported by said support frame , comprising at least one fan in order to generate an air flow and at least one conveyor , which receives the air flow from the fan and orients it substantially transverse to the travel direction (Y) in order to treat the plantations; - distribution means for distributing the liquid product contained in said containment tank , comprising a plurality of nozzles hydraulically connected to said containment tank , and mechanically associated with said conveyor ; characterized in that: - said distribution means comprise at least one pump provided with at least one shaft arranged for being mechanically connected to the power take-off of a tractor; - said ventilation means comprise: - an alternator mechanically connected to the shaft of said pump , in order to generate electrical energy; - an electric motor , which is mechanically connected to said fan ; - an electronic control group , which receives the electrical energy from said alternator and power supplies said electric motor ; said atomizer also comprising at least one detection sensor susceptible of detecting the leaves of plantations, oriented substantially transverse to the travel direction (Y) of said atomizer ; - at least one logic control unit in signal communication with said detection sensor , and with said electronic control group and configured for controlling the power supply of said electric motor through said electronic control group as a function of the signals of said detection sensor . - a support frame susceptible of advancing on the ground in a travel direction (Y); - a containment tank for containing at least one liquid product to be dispensed, mounted on said support frame ; - ventilation means supported by said support frame , comprising at least one fan in order to generate an air flow and at least one conveyor , which receives the air flow from the fan and orients it substantially transverse to the travel direction (Y) in order to treat the plantations; - distribution means for distributing the liquid product contained in said containment tank , comprising a plurality of nozzles hydraulically connected to said containment tank , and mechanically associated with said conveyor ; - said distribution means comprise at least one pump provided with at least one shaft arranged for being mechanically connected to the power take-off of a tractor; - said ventilation means comprise: - an alternator mechanically connected to the shaft of said pump , in order to generate electrical energy; - an electric motor , which is mechanically connected to said fan ; - an electronic control group , which receives the electrical energy from said alternator and power supplies said electric motor ; said atomizer also comprising at least one detection sensor susceptible of detecting the leaves of plantations, oriented substantially transverse to the travel direction (Y) of said atomizer ; - an alternator mechanically connected to the shaft of said pump , in order to generate electrical energy; - an electric motor , which is mechanically connected to said fan ; - an electronic control group , which receives the electrical energy from said alternator and power supplies said electric motor ; - at least one logic control unit in signal communication with said detection sensor , and with said electronic control group and configured for controlling the power supply of said electric motor through said electronic control group as a function of the signals of said detection sensor . <EOS>