1、 Cause

Lily leaves are green under normal maintenance. When white spots appear, the leaves may be scorched. At first, the young leaves will curl inward, and then yellow green to white spots will appear on the leaves. If the disease is serious, the white spots will deepen and turn into brown spots, eventually leading to leaf curling. If we don't care for it all the time, the disease will spread rapidly, leading to the partial abscission of leaves and buds, and the growth of the whole plant will also be affected, resulting in the cessation of growth

2、 Prevention and control measures

1. Prevention: before planting, pay attention to prevention and try to choose varieties with strong disease resistance, so as not to be vulnerable to infection. Carefully check whether there are diseases and pests, and keep the root system intact without signs of decay and blackening

2. Planting: the depth of planting should be appropriate. About 6-10cm soil layer should be maintained on the planting ball. Planting too deep and too shallow is not conducive to growth. After planting, pay attention to water spraying, especially in summer, spray water several times a day, and pay attention to shade, so as to prevent excessive evaporation of water

3. After onset: when the disease occurs accidentally, the diseased leaves need to be removed in time and then destroyed in a centralized manner, so as to control the disease