within 2 days the leaves of my 2 very large plants have turned black,shrivelled and drooped. They have been healthy for the past 12-15 years. The leaves are that shrivelled they look dead. Any ideas what this may be.
I have a very old victorian rhododendron garden which now appears to have a few trees that are spotted and are looking in general poor condition what should I do and can I treat rather than remove these trees as some are over 100 years old and I do not want to damage the appearance of the garden. Please advise.
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within 2 days the leaves of my 2 very large plants have turned black,shrivelled and drooped. They have been healthy for the past 12-15 years. The leaves are that shrivelled they look dead. Any ideas what this may be.