Diseases in Paddy crops (https://www.agmarks.com/disease-management/Paddy/disease-data)
Diseases Name: Blast
Brownish lesions and spots are formed on leaf blade, leaf sheath, culms and panicles. The spots are spindle-shaped with grey or white central part and brownish or reddish borders.
The spots enlarge as the disease progress. Brown to black spots (or) rings is formed on the rachis of the mature inflorescence.