Q38 / 240 · KCET 2026 · Biology

Given below are two statements.
Statement-I: Baculoviruses are pathogens that attack nematodes.
Statement-II: Baculoviruses are used as biological control agents in ecologically sensitive areas as they are species-specific in their action.
In the light of the above statements, choose the correct answer from the options given below.

  • A
    Both Statement I and Statement II are true
  • B
    Both Statement I and Statement II are false
  • C
    Statement I is true, but Statement II is false
  • Correct answer
    D
    Statement I is false, but Statement II is true

Solution

Baculoviruses are pathogens that attack insects and other arthropods, not nematodes. Therefore, Statement-I is false.

The majority of baculoviruses used as biological control agents belong to the genus Nucleopolyhedrovirus. These viruses are excellent candidates for species-specific, narrow spectrum insecticidal applications. They have no negative impacts on plants, mammals, birds, fish, or even non-target insects. This makes them highly suitable for use in ecologically sensitive areas or in integrated pest management (IPM) programmes. Therefore, Statement-II is true.

Answer: Statement I is false, but Statement II is true

Hence, the correct answer is option: 'D'.