A training class on preventing and controlling tropical crop pests and diseases for students from developing countries is held in Haikou, capital of South China’s Hainan Province. (Photos: Xinhua)

More than 40 students from 16 countries, including Cuba, Fiji, Myanmar and Zambia, have participated, and learned about pest control and post-harvest preservation.

The students learn cassava planting techniques in Yanfeng town, Haikou, on Monday. (Compiled by Huang Jingjing)