South Korea: Black spot disease spreads in Jeju's broccoli

As concerns grow over the spread of broccoli ‘black spot disease’ in the western part of Jeju, farmers are being urged to take measures to control the disease. The Jeju Special Self-Governing Province Agricultural Research and Extension Services (Director Ko Sang-hwan) requested control measures in Aewol-eup and Hallim-eup, which are major winter vegetable production areas, due to concerns over the spread of broccoli black spot disease. According to the Rural Development Administration, the average temperature from September to October was 24.3 degrees Celsius, 3.7 degrees Celsius higher than the average year, and the number of rainy days was 30, with rain falling every other day. With heavy rainfall forecast until early December, concerns are growing that black spot disease will occur and spread. Black spot disease occurs in overly humid and densely planted fields, and small, yellow-green, water-soaked spots appear on the leaves at the beginning of the disease, and as the ...