Question

Identify the disease of apple which is caused by Glomerella cingulata:

• A. Alternaria rot
• B. Aspergillus rot
• C. Bitter rot
• D. Brown rot

Hint:

Remember:
Glomerella cingulata (Colletotrichum) = Bitter rot of Apple.
Monilinia fructicola = Brown rot of stone fruits.

Answer 1

The Correct Option is C

Step 1: Understanding the Concept:
Bitter rot is an economically important fungal disease of apple that damages fruit quality during the pre-harvest and post-harvest stages.

Step 2: Detailed Explanation:
The disease Bitter Rot of apple is caused by the ascomycete fungus {Glomerella cingulata (with its asexual/anamorph stage known as Colletotrichum gloeosporioides).
The disease exhibits characteristic sunken, circular, light-to-dark brown rotten spots on the fruit surface, which often release salmon-pink spore masses under humid conditions.

Step 3: Final Answer:
The disease of apple caused by Glomerella cingulata is Bitter rot, which is option (C).