Cotswolds Garden - FAQs
Frequently asked gardening related questions
Blackening of magnolia leaves can be due to various reasons. Sooty mould is a common cause, which is a black, powdery fungus that grows on the sticky honeydew excreted by sap-sucking pests like aphids or scale insects. Address the underlying pest problem to get rid of the sooty mould. Frost damage can also cause young leaves to blacken. Fungal leaf spots or environmental stress can also lead to discolouration. Assess accompanying symptoms (e.g., pests present, recent frost) to diagnose correctly.
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