Topic: Biocontrol agents and biofertilizers· Biology and Human Welfare

Select the correct group of biocontrol agents.

1. *Bacillus thuringiensis*, Tobacco mosaic virus, Aphids

2. *Trichoderma*, *Baculovirus*, *Bacillus thuringiensis*

3. *Oscillatoria*, *Rhizobium*, *Trichoderma*

4. *Nostoc*, *Azospirillum*, *Nucleopolyhedrovirus*

Doubtly Asked 30 Oct 2026 NEET UG 2019 Practice test neet Save WhatsApp Report

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Answer: 2. *Trichoderma*, *Baculovirus*, *Bacillus thuringiensis*

Biocontrol agents include Bacillus thuringiensis (bacterium), Trichoderma (fungus) and Baculovirus (virus against insects).

Option 1 has aphids (pests) and TMV (a plant pathogen). Options 3 and 4 have biofertilisers such as Rhizobium, Nostoc, Azospirillum. Option 2 is correct.

Doubtly AI · 30 Oct 2026 AI-generated · not yet verified Report

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Select the correct group of biocontrol agents.

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