1. Causes of blackening1. Disease: When this type of plant is infected with anthracnose, many small round black spots will grow on the leaves, which will gradually turn black and fall off. The branches of the plant will also become drier, which will have a great impact on the growth of the plant. 2. Pests and diseases: When the plant attracts 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 slowly fall off. 3. Improper watering: Giving this type of plant too much water will affect its respiration, causing the leaves to turn black and fall off. If the water quality of the plant is poor, the leaves will turn black. 2. Solution1. When the plant is sick, you need to cut off the diseased leaves and then put them together and burn them. Also place the plant in a place with good air circulation and spray the plant with therapeutic drugs several times. 2. After being infected by pests, the operation method is the same as that for anthrax. You need to cut off the leaves and then spray some medicine on it. 3. When giving too much water, place the plant in a ventilated place and give less water each time. The water you give each time must be clean. If you use tap water, you need to leave it for a few days. |
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