A farmer operates an agricultural drone to spray pesticides in Jinsuo Township, Sihong County of Suqian, east China's Jiangsu Province, March 6, 2019. This Wednesday marks the day of "Jingzhe", literally meaning the waking of insects, which is the third one of the 24 solar terms on Chinese Lunar Calendar. With the temperature rising, farmers are busy with their farm work. (Xinhua/Zhang Lianhua)