Why Will Be The Cure To A Fungus Like Growth On A Tree Bark?

Question

This is an Indian tree known locally as Parijat. It’s a flowering tree. There was rain recently and this fungus like growth appeared yesterday.

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Answer 1

Uh oh. That's Armillaria mycelium. There is no cure for this. As long as it remains dry, the mycelium will have trouble spreading. Any moisture will speed up the damage. The tree will die from this, eventually.

https://www.gardeningknowhow.com/plant-problems/disease/armillaria-root-rot-control.htm