Following fungus is effective on root grubs

Solution(By Examveda Team)

Metarrhizium anisopliae fungus is effective on root grubs.
Metarhizium anisopliae is a fungus that grows upon insect host cuticle. It is a fungus that grows naturally in soils throughout the world and causes disease in various insects by acting as a parasitoid.
The disease caused by the fungus is sometimes called green muscardine disease because of the green colour of its spores. The cuticle of the cadaver often becomes red. If the ambient humidity is high enough, a white mould then grows on the cadaver that soon turns green as spores are produced.