Sumach tree wilting
Hi, can anyone help?
we have a beautiful stag's horn sumach tree in our garden which has been fantastic for 2 years since we moved in. This year, the leaves struggled to emerge and they have been wilting/dropping off.
Does anyone have any idea what is causing this or if there is anything we can do to help it?
thanks in advance!
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POSSIBLY VERTICILIUM WILT. CHECK THE STEMS FOR CHARACTERISTIC STREAKS OF BROWN.
https://www.rhs.org.uk/advice/profile?PID=255
If you live in Derbyshire, as I do.