A worker labels mangoes at an orchard in Vehari in Pakistan's Punjab province on July 15, 2019. Pakistan is a major producer of the world's best and most popular mangoes, ranking the 4th largest in the world with an annual output of around 1.8 million tons. The sweet and juicy mangoes earn its reputation in European and Gulf countries and serves as a main pillar of Pakistan's fruit exports. (Xinhua/Liu Tian)