Q.

Select the correct group of biocontrol agents.                     [2019]

1 Nostoc, Azospirillum, Nucleopolyhedrovirus  
2 Bacillus thuringiensis, Tobacco mosaic virus, Aphids  
3 Trichoderma, Baculovirus, Bacillus thuringiensis  
4 Oscillatoria, Rhizobium, Trichoderma  

Ans.

(3)