Photinia resistance is relatively strong, so less disease, but if the plant management is not good or the plant growth environment is not good, it will also produce certain diseases, such as gray mold, leaf spot, etc.
Grey mould is a kind of fungal disease. When it comes to the disease, the flowers, stems, leaves and fruits of plants will show up. When it comes to the disease, the leaves and petioles will be gray white and water stained. The plant tissue will gradually soften until it rots, and the plants will eventually wither and die.
To carry out drug treatment, the disease will be timely removed to prevent reinfection.
Leaf spot disease mainly occurs in spring and autumn. When it comes on, small spots will appear on the leaves. With the continuous spread of symptoms, small spots will gradually become larger until large black spots are produced.
Carry out the treatment of the sick plant, destroy the sick plant, carry out drug control, and do not spray the plant.
The main pest that affects the growth of Phoebe is the scale insect.
Scale insects are mainly harmful to the branches, leaves and fruits of plants. Once scale insects live on the leaves, they will stay on the leaves for life, thus damaging plants.
Drug treatment