Hello all,

I'm having trouble with my 5 year old Chinese Elm. The leaves are turning
yellow and brownish-black spots are apparent on most of these yellowing
leaves, leaves then drop off. I assume it's BLACK LEAFSPOT, caused by
Stegophora ulmea. I've tried some fungicidal Rose Spray but it doesnt seem
to be helping, have also tried a Baking Soda/oil/pure soap based homemade
spray with no apparent success. Any suggestions?

Thanks in advance,

Mark