Question

Rice blast is caused by :

• A. Taphrina deformis
• B. Puccinia graminis
• C. Magnaporthe grisea
• D. Colletotrichum falcatum

Answer 1

Answer: (C)

Magnaporthe grisea

• Rice blast disease caused by the fungus Magnaporthe grisea.
• The symptoms of rice blast include lesions that can be found on all parts of the plant, including leaves, leaf collars, necks, panicles, pedicels, and seeds.
  
• The fungus can infect rice plants at any growth stage. Rice blast spreads by windborne spores, by water, and on infected plant material.
  
• Hence Rice blast is caused by Magnaporthe grise.
• So, the correct answer is 'Magnaporthe grisea'.