Which one of the following pair is incorrectly matched?

Rhizobium lives symbiotically in root nodules of leguminous plants and carries out nitrogen fixation. Baculovirus belongs to group of Nucleopolyhedro virus and is used as a biocontrol against insect and other arthropods. Lady bird beetel is used to get rid of aphids. Trichoderma is a free living soil borne fungus which inhibits growth of other fungal pathogen, thus is used as a biocontrol agent.