leaf blight of rice is a monsoon disease seen in rice(Oryzae sativa) caused by bacteria
Xanthomnas oryzae
Classification:
Kingdom:Bacteria
Phylum:Pseudomonadota
Class:Gammaproteobacteria
Order:Xanthomonadales
Family:Xanthomonadaceae
Genus:Xanthomonas
Species:oryzae
Characteristic Symptoms :
-Yellow-colored long streaks will appear on the leaves and leaf sheath
-Many such streaks coalesce and form large patches.
-As the infection becomes severe a bacterial exudate comes out which later becomes dry.
-Infection at maximum causes significant yield loss ranging from 20-30% or even 80%
Reference: PRACTICAL BOTANY (MICROBIAL DIVERSITY, ALGAE AND FUNGI) by Satish Kumar