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in Problem solving
Can anyone tell me why the leaves on my myrtle bush (it is about 18mths old) growing in a large pot have started to get something like black spot and are dropping off. It has been growing very well, although it didn't have any flowers and consequently no berries on it this year. Don't want to loose it so any help would be appreciated.
I have just notice that my potted myrtle has widespread black/purple blotches with ochre spots appearing within the purple areas. Is it disease of mistreatment?