An aerial view shows farmers working in a herb field in Bozhou in China's eastern Anhui province on March 6, 2019. (Photo by STR / AFP) / China OUT (Photo credit should read STR/AFP/Getty Images)
An aerial view shows farmers working in a herb field in Bozhou in China's eastern Anhui province on March 6, 2019. (Photo by STR / AFP) / China OUT (Photo credit should read STR/AFP/Getty Images)