Is my siberian elm dying or just stressed?
Siberian elm is far more resistant to Dutch elm disease than American elm, so it rarely dies dramatically — it degrades. Look for bacterial wetwood weeping slime flux down the trunk, cankers, dead tops, and elm leaf beetle skeletonizing the foliage brown by midsummer; by the time a Siberian elm looks bad, the wood is generally already compromised where it matters structurally.
Why siberian elm ends up on a quote here
Planted across the Midwest in the early 20th century as a fast, drought-proof shelterbelt tree, and it has been paying that back ever since — brittle wood, short life, and seed into every fencerow and pavement crack. In central Indiana it is the species most often removed on a general "just get rid of it" basis rather than for one identifiable defect, and it is no longer recommended for planting anywhere in the region.
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