By Alizia
United States 
what eats a sumac?
2 May, 2018
Answers
welcome to GoY
it could be deer/ rabbits or insects. you don't say if it is the branches, foliage or seeds that are being eaten.
can you add a photo of the damage?
2 May, 2018
Glancing through the posts I thought I saw "who eats sumac?".
Not me -- and then saw the what.
6 May, 2018
http://naturalcrooks.com/rambles/what-eats-staghorn-sumac-seeds/
Hope this helps Alizia.
2 May, 2018