Brown leaf spot disease of rice is caused by

A. Drechslera oryzae

B. Cercospora arachidicola

C. Urocystis tritici

D. Pyricularia oryzae

Answer: Option A

Solution(By Examveda Team)

Brown leaf spot disease of rice is caused by Drechslera oryzae.
Drechslera oryzae causes brown leaf spot disease in rice (Oryza sativa L.). This fungal pathogen produces a series of ophiobolins that cause some of the characteristic symptoms of the disease when applied to rice leaves at 10^-4 and 10^-5 M.