Decaying or dying or wilting of plant leaves, flowers, fruits and stem tissue is called blight. Blight disease of rice is called leaf burn disease or collapse disease. Farmers in Japan were the first to discover the disease. In Japan, this disease is known as white rice disease. In Bangladesh in 1986, the existence of this disease was detected in Ropa Aman rice. In 1908, Japanese scientist Takaeshi proved that it is a bacterial disease. This disease reduces rice production by 22,000-110,000 tons per year in Japan.