Q.At home I have all Azhalea Plants have Black powdery Sooty mold on Leaves and on stems and dendrLIONS DYING DUE TO WHITE FUNGUS ON
STEMS At home I have all Azhalea Plants have Black powdery Sooty mold on Leaves and on stems and dendrLIONS DYING DUE TO WHITE FUNGUS ON STEMS

Certified GKH Gardening Expert
I would say, without seeing pictures, that you have a fungal infection. There are many ways to deal with this. My preferred method is wettable sulfur, and dolomitic lime. This will take care of anything growing in the soil. Here is an article for more information on the care of these: https://www.gardeningknowhow.com/ornamental/shrubs/azalea/azaleas-noteworthy-shrubs-for-any-garden.htm