Workers pack silkworm cocoons at a purchasing station in Aikou Village of Liuzhou City, south China's Guangxi Zhuang Autonomous Region, Sept. 19, 2018. (Xinhua/Tan Kaixing)

A worker checks silkworm cocoons at a purchasing station in Aikou Village of Liuzhou City, south China's Guangxi Zhuang Autonomous Region, Sept. 19, 2018. (Xinhua/Tan Kaixing)

A villager feeds silkworms in Aikou Village of Liuzhou City, south China's Guangxi Zhuang Autonomous Region, Sept. 19, 2018. (Xinhua/Tan Kaixing)

A villager checks silkworm cocoons in Aikou Village of Liuzhou City, south China's Guangxi Zhuang Autonomous Region, Sept. 19, 2018. (Xinhua/Tan Kaixing)