Spray insecticidal soap to get rid of powdery mildew on plants. Photos: 123rf.com
Email your questions to lifestyle@thestar.com.my with "Plant Doctor" in the subject field. Questions may be edited for brevity and clarity.
Several reasons can lead to the appearance of white dust or talcum-like powder on your plants. However, your observation that your rose plant is especially vulnerable suggests that powdery mildew could be the problem. This common fungal disease affects many plants, with roses being particularly susceptible.
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