Hi GerryMy rhododendron has some green fungal disease on the older leaves. It look like thin film of green algae - like a green powdery midlew.What is it and how could I use to eradicate this? Thanks
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Over ten years, Gerry Daly answered more than 5,000 gardening questions. His knowledge is based in science and practical experience, and by working on radio and television. Access to the advice database is open
Hi GerryMy rhododendron has some green fungal disease on the older leaves. It look like thin film of green algae - like a green powdery midlew.What is it and how could I use to eradicate this? Thanks
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