UPDATE: Black Spots Chinese Elm
 

One week after I posted my message about black spots on my Chinese Elm leaves,
the problem is about 80% gone. Anyhow Art recommended Orthenex and have
applied it 2x in this first week. Seemed to cure a 2nd problem of Aphids.
Good stuff!

Anyhow, I have a 2nd question. I got this Elm from a guy that sold it in
regular potting soil. It seems pretty healthy but when I lifted a rock (for
design) i noticed 2 earthworms. Will the earthworms have any ill effects on
the tree?