Question

Given below are two statements:

Statement (i): Tomato spotted wilt virus is not transmitted by Thrips tabaci
Statement (ii): Cucumber mosaic virus is transmitted by Myzus persicae

In light of the above statements, choose the most appropriate answer from the options given below.

• A. Both Statement (i) and Statement (ii) are correct
• B. Both Statement (i) and Statement (ii) are incorrect
• C. Statement (i) is correct but Statement (ii) is incorrect
• D. Statement (i) is incorrect but Statement (ii) is correct

Hint:

TSWV requires thrips to acquire the virus during larval stages - adults can transmit but not acquire the virus.

Answer 1

The Correct Option is A

Tomato spotted wilt virus: 
Transmitted by Frankliniella occidentalis, not Thrips tabaci 
Cucumber mosaic virus: 
Effectively transmitted by Myzus persicae (green peach aphid)

Answer 2

Alternate approach - verify each virus-vector pair independently against known transmission specificity:
Tomato Spotted Wilt Virus (TSWV) is efficiently transmitted by thrips species capable of propagative transmission, most notably Frankliniella occidentalis; Thrips tabaci is not recognised as an efficient vector of TSWV in most reports, so Statement (i)'s denial of Thrips tabaci as a vector is consistent with known vector specificity and holds true.
Cucumber Mosaic Virus (CMV) is a classic example of a non-persistently, aphid-transmitted virus, and Myzus persicae (green peach aphid) is one of its most efficient and widely documented vectors, so Statement (ii) is also consistent with established transmission data.
Since both statements independently check out against known vector-virus relationships, both are correct.