Fuente: WIPO "tomato" A method and system for detecting disease in a plant, the method including: obtaining a baseline electrical impedance or resistance measurement of a plant organ by applying an electrical signal via a plurality of electrodes in contact with the plant organ and measuring a response to the applied electrical signal; obtaining one or more subsequent electrical impedance or resistance measurements of the plant organ or another plant organ of the plant, each subsequent measurement obtained after a time interval from a previous measurement; comparing the one or more subsequent electrical impedance or resistance measurements with the baseline electrical impedance or resistance measurement to detect a deviation indicative of a developing disease in the plant; and generating an alert in response to detecting the deviation indicative of the developing disease.