Have you guys heard about this?
DJI released images of their new MG-1 and stated that they are releasing it only in Asia for now...
Its made for spraying crops in field that currently use manual labour. It costs about $15,000 USD for the system, and it looks pretty interesting.
I have some pictures and more info on my blog, so if you want you can read more using this link:
http://www.top10droneguide.com/thedr...lture-industry