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Question:

Select the correct group of biocontrol agents.

Bacillus thuringiensis, Tobacco mosaic virus, Aphids

Trichoderma, Baculovirus, Bacillus thuringiensis

Nostoc, Azospirillium, Nucleopolyhedrovirus

Oscillatoria, Rhizobium, Trichoderma

Solution:

Correct option is B. Trichoderma, Baculovirus, Bacillus thuringiensis
Fungus Trichoderma, Baculoviruses(NPV) and Bacillus thuringiensis are used as biocontrol agents.
Rhizobium, Nostoc, Azospirillum and Oscillatoria are used as biofertilizers, whereas TMV is a pathogen and aphids are pests that harm crop plants.
So, the correct answer is 'Trichoderma, Baculovirus, Bacillus thuringiensis'