Japanese citrus farmers combat heat and drought

Citrus farmers in Japan are facing significant challenges due to extreme weather, including severe water shortages and intense heatwaves. In the Hidaka region of Wakayama, a lack of rainfall since mid-July has hindered the growth of mikan oranges. Concerns are rising regarding reduced yields and smaller fruit sizes as the harvest season approaches in early September. Farmers report that without irrigation facilities, the lack of rain has led to weakened trees and sun-damaged fruit.

In Miyazaki, producers are adopting new technologies to combat heat-related damage. To prevent sun-scald, which discolors the skin and hardens the fruit, JA Miyazaki has begun testing the application of a white calcium agent known as ‘White Coat’. This method reflects sunlight away from the fruit and offers a more efficient alternative to the labor-intensive process of applying protective tape to individual oranges. The agent is registered with the Ministry of Agriculture, Forestry and Fisheries and is washed off at sorting facilities before shipment, ensuring no impact on the final appearance of the product.