Correct Option (b)
Reason : Paecilomyces lilacinus is a fungus which principally infects eggs of root knot nematode (Meloidogyne sp.) and cyst nematodes (Gobodera and Heterodera sp.)
It has been considered to have greatest potential for application as a biocontrol agent in sub-tropical and tropical agricultural soils.
Correct Option (b) Reason : Paecilomyces lilacinus is a fungus which principally infects eggs of root knot nematode (Meloidogyne sp.) and cyst nematodes (Gobodera and Heterodera sp.)
It has been considered to have greatest potential for application as a biocontrol agent in sub-tropical and tropical agricultural soils.