Q.light brown layer on stem
Under it is green. If I rub off with finger, it comes back the light brown colour. What is it and how do I get rid of it? Thanks.
Alisma
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on October 30, 2016
Is this a Christmas cactus? Here is a guide to diseases of Christmas cactus. Perhaps Botrytis blight could cause these symptoms.
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