1. Disease: after this kind of plants get anthrax, the leaves will grow many small round black spots, which will gradually turn black and fall. The branches of the plant will also become dry, which has a great impact on the growth of the plant.
2. Plant diseases and insect pests: after the plant provokes some pests, the color of the leaves will turn black, and the black area will gradually become larger, affecting the nutrient supply of the leaves, and the leaves of the plant will fall off slowly.
3. Improper water supply: too much water will affect the respiration of the plant, so that the leaves of the plant will turn black and fall. The water quality of the plant is not good, and the leaves will turn black.
1. When the plant gets sick, it needs to cut off the sick leaves and burn them together. Also place the plant in a place with good air flow, spray the plant with several times of treatment.
2. After infecting the pest, it needs to cut off the leaves and spray some medicine to get anthrax.
3. When there is too much water supply, put the plant in the ventilated place, and give less water each time. The water should be clean every time. If you use tap water, you need to keep it for a few days.