AIIMS 2019 Zoology Biopesticides Assertion Reason Question

Option B is correct because the assertion that baculoviruses can be used to control the population of nucleopolyhedroviruses is true, as baculoviruses are known to infect and regulate other viruses within insect hosts. However, the reason stating that they are effective against plant pathogens is incorrect, as baculoviruses primarily target insect pests rather than plant diseases. Option A is incorrect because the reason does not explain the assertion. Option C is incorrect because the assertion is valid, while the reason is not. Option D is also incorrect since the assertion is indeed true.