What to do if gardenia has powdery mildew
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What to do if gardenia has powdery mildew
When gardenia has powdery mildew, it is necessary to improve ventilation, move it to a place with better light, and let the plant get more sunlight, which can effectively kill bacteria. During management, apply more phosphorus and potassium fertilizers, reduce the amount of nitrogen fertilizers, which can enhance disease resistance. When the disease occurs, spray 15% diniconazole 1000 times solution or 50% benomyl wettable powder 1000 times solution, and spray once a week. Continuous application for three to four times can effectively control the disease.
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