Sandcherry
Q.

sandcherry trees have hard white caking on the bark

Zone 5 | ryelady added on September 5, 2015 | Answered

Do you have any idea what it is?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on September 8, 2015

This could be a fungus or even insects.
Treat with Neem Oil as this works as both an insecticide and fungicide.

Here are a few links for you with more information.
https://www.gardeningknowhow.com/ornamental/trees/sand-cherry/purple-leaf-sandcherry-info.htm
https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm

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