New plant "wearable" sensors have been developed to track vital signs of plant life, such as temperature and humidity beneath the leaf's surface, and stem growth. These sensors aim to detect distress signals in plants earlier, allowing farmers to respond and help their crops thrive before visible signs of stress appear. The system runs without an external battery, using moisture evaporating from the plant itself for power. This innovation could revolutionize crop management by providing real-time information to farmers for proactive crop care.
https://www.enn.com/articles/78149-plants-get-wearables-to-track-their-health