1、 How is Hydrangea leaf white

The white leaves of Hydrangea are mostly caused by powdery mildew. If it is placed in a place with high humidity, high temperature and insufficient ventilation for a long time during maintenance, it may be infected with bacteria and powdery mildew. In the early stage of disease, a small number of leaves of the plant will appear white irregular disease spots. If it is not treated in time, the number of diseased leaves will increase greatly and the plants will wither slowly

2、 How does Hydrangea leaf turn white

1. Pruning in time: after white spots are found on the leaves of Hydrangea, the diseased leaves need to be cut off in time. These leaves carry germs. If they are not cut off in time, the germs may spread to other leaves

2. Change position: after pruning, put the plants in a well ventilated place for maintenance. During the curing period, water control shall also be carried out, and it can be watered only when its soil becomes dry

3. Spraying medicine: in addition to changing the position, spray medicine for it. The drug can use 1000 times of 15% Triadimefon, 1000-1500 times of 10% polyantimycin and 200 times of 2% antimycin water. Spray once every 3-4 days for 2-3 weeks, and it can be basically cured. After cure, you can spray several more times to prevent disease recurrence