A drone brings high-tech change to the spraying of pesticides on a wheat field in Haimen, Nantong, in eastern Jiangsu province, on April 18. The drone – with an array of functions including automatic navigation, and an automatic pesticides spraying mode – has proved to be highly effective. Conventional spraying of pesticides by hand in the same area, normally takes around three days, but only one hour for the drone. [Photo/Haimen Daily]