Question

With reference to the introduction of plant disease into India from other countries, consider the following pairs.
a. Bunchy top of banana - Ceylon (Sri Lanka)
b. Potato tuber moth - Italy
c. Flag smut of wheat - Fiji
Which of the pairs is/are correctly matched?

• A. $1$ and $2$ only
• B. $2$ only
• C. $1$ and $3$ only
• D. $1,2$ and $3$

Answer 1

The correct option is B $2$ only

• The banana bunchy top is a viral disease caused by a single-stranded DNA virus called the banana bunchy top virus (BBTV). It was first identified in Fiji in 1879, and has spread around the world since then.
• It is believed that potato tuber moth was introduced to India from Italy about 80 years back along with imported potato seeds.
• The first reports of flag smut's of wheat presence came from Australia in 1868. Later, other countries identified it as the pathogen that was introduced to world crops through the trading of seeds and infected cultivars.

So, the correct option is B.