How to solve and treat gardenia powdery mildew
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How to solve and treat gardenia powdery mildew
When gardenias are infected with powdery mildew, they can spray 50% benomyl wettable powder 1000 times solution or 15% triadimefon wettable powder 1000 times solution, spray once a week, and continue to spray three to four times to effectively control the occurrence of the disease. In addition, prevention should also be noted to reduce problems in the following year. After the end of the season, the diseased leaves should be cleared, and do not wait for the frost to come to deal with them. During the growing period, ferrous sulfate should also be sprayed for prevention.
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