Drones have been used for crop monitoring for a while now. Using the aerial footage to determine the parts of crops in most need of specific resources such as pesticides, fertilizers, or hydration. Something a bit more automated like what this guy's talking about seems like it should be in use today or, if not, very soon. I remember reading about this stuff several years ago around 2018-2019 when I had a drone and looking at ways to make money with them. Of course, it may not be in widespread use.
newsman3|2 years ago