Hydrangea Leaves Turning White
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Hydrangea Leaves Turning White
The whitening of hydrangea leaves may be due to powdery mildew infection. Initially, white spots appear on the leaves, which will then gradually spread. Once powdery mildew is detected, immediate pruning is necessary, cutting off the affected leaves, and then spraying polyantibiotic or rust-static.
Hydrangea leaves turning white may be due to powdery mildew infection, which is one of the common diseases of hydrangeas. High temperatures and humidity in summer are the seasons when powdery mildew is more likely to occur. Initially, white spots appear on the leaves, which then gradually spread, causing the entire leaf to wither and the plant to die.
1. Timely Pruning
If powdery mildew is detected on hydrangeas, timely pruning is necessary to cut off all the affected leaves to prevent the spread of the disease. After pruning, disinfection should be done to avoid secondary infection of the plant.
2. Spraying Medication
To ensure the complete eradication of the disease, appropriate medications should be sprayed for prevention and control. You can choose polyantibiotic or rust-static, spraying once a week for a month.
3. Strengthen Ventilation
In the process of caring for hydrangeas, good ventilation should be ensured, which can effectively prevent the occurrence of powdery mildew. Additionally, it is recommended to spray a solution of carbendazim at the beginning of summer for early prevention.
The above introduction to the whitening of hydrangea leaves is provided for netizens' reference.