An aerial drone photo taken on July 29, 2026 shows a drone carrying out aerial crop protection operations over a farmland of Beidahuang Group in northeast China's Heilongjiang Province. Various agricultural production units under Beidahuang Group in Heilongjiang Province have launched aerial crop protection operations over farmlands in succession, safeguarding stable autumn grain production through scientific and technological methods. (Photo by Li Xing/Xinhua)