Cotswolds Garden - FAQs
Frequently asked gardening related questions
Rose rust (Phragmidium mucronatum) is a fungal disease characterised by orange, powdery pustules on the undersides of leaves, often turning black later in the season. It thrives in cool, moist conditions. Management involves removing and destroying affected leaves immediately. Ensure good air circulation. In autumn, clear all fallen leaves to reduce overwintering spores. Resistant varieties should be chosen when planting new roses.
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