MONARDA DISEASES
MONARDA DISEASES
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The only serious disease problem is powdery mildew which must be controlled to prevent defoliation. The disease may completely cover the plant with a white powdery growth then the leaves yellow and drop. Spray with benomyl or sulfur.
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| Visual title - Visual size | Visual title - Visual size |
|---|---|
| Powdery mildew on monarda - 76K | Powdery mildew on monarda - 50K |
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by the editors of Old-House Interiors magazine
by the editors of Old-House Interiors magazine
