Disease attacking Crepe Myrtle

Question

Hi, does anyone know what this is and how to treat it? It’s on all my crepe myrtles in the front and backyard and it got my Confederate Jasmine too. It’s looks like tiny white cotton balls and it turned the leaves black. On one myrtle, it turned bark of tree black. Any help would be appreciated.

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Answer 1

Thank you! Looks like a lot of work and the trees are big. Hope we can save them.

Answer 2

This is White Scale.
This link will help you.

https://www.gardeningknowhow.com/ornamental/trees/crepe-myrtle/crepe-myrtle-bark-scale.htm