Farmers pick apples at a fruit and vegetables specialized cooperative in Nanhai New Area of Weihai, east China's Shandong Province, Oct. 23, 2019. (Xinhua/Guo Xulei)

A farmer shows a newly-harvested apple at a fruit and vegetables specialized cooperative in Nanhai New Area of Weihai, east China's Shandong Province, Oct. 23, 2019. (Xinhua/Guo Xulei)

A farmer picks apples at a fruit and vegetables specialized cooperative in Nanhai New Area of Weihai, east China's Shandong Province, Oct. 23, 2019. (Xinhua/Guo Xulei)

Aerial photo shows farmers picking apples at a fruit and vegetables specialized cooperative in Nanhai New Area of Weihai, east China's Shandong Province, Oct. 23, 2019. (Xinhua/Guo Xulei)