What is the reason for the brown spots in the middle of the leaves of white magnolia
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What is the reason for the brown spots in the middle of the leaves of white magnolia
The brown spots in the middle of the leaves of white magnolia are mostly caused by the plant being infected with (T-J) disease, which is a fungal infection caused by poor ventilation and insufficient light during regular maintenance. Attention should be paid to strengthening the ventilation environment, moving it to a place with more sunlight, and promptly cutting off the diseased leaves and burning them to reduce the source of infection. In addition,喷药 treatment should be carried out when the disease occurs. You can spray 70% (T-J) Fumigation 500 times liquid or 65% zinc omethoate 800 times liquid, once every ten days, for three times.
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