What is this? Fungus?

[silver_yummies]

Found this on a centennial crab tree today. Just a light white material on some limbs of the tree.

 

[Native Hunter]

Wooly Apple Aphids. The link below will help you:

https://entomology.ca.uky.edu/ef219

 

[silver_yummies]

Wooly Apple Aphids. The link below will help you:

https://entomology.ca.uky.edu/ef219

That’s definitely it. I did see some ladybugs present so hopefully they will destroy the aphids.