Several Israeli companies monitor the condition of trees and crops (see here). Another is Treetoscope – its Sap Flow sensors are inserted into the tree trunk to continuously measure water flow in almond, avocado, citrus, apple trees and vines. It is now partnering global leader Toro.
https://www.youtube.com/watch?v=OUrAoOSqujE
https://finder.startupnationcentral.org/company_page/treetoscope