Dropcopter's drones boost crop pollination by up to 60% in bad bee years

https://www.suasnews.com/2018/07/dropcopter-releases-pollination-results/

https://youtu.be/rTFjTrT9zrQ

https://newatlas.com/dropcopter-pollination-drones-bees/55323/

http://dropcopter.com/