MySheen

What if the leaves of azaleas turn black?

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, This problem can be summed up in five aspects. The first is moisture, too much and too little will not work, it needs the right amount. The second is the question of fertilizers, neither too much nor too little. In addition, if the humidity of the air is too low, it will also cause this situation, so it is necessary to spray some water properly. The fourth is that the light is too strong, which may burn and blacken the leaves, and you can adjust their position. The last one is the disease, specifically "brown spot", which causes its leaves to turn black. At this time, it is necessary to deal with the diseased leaves before spraying.

1. Water problem

(1) specific reason: this plant has a high demand for water. If you give too much or too little, the leaves may turn black.

(2) solution: therefore, generally speaking, the frequency of water supply should not be too frequent. Observe the state of the soil surface and wait until it is dry before watering it. According to this to determine the interval time of watering, more flexible, the effect is good.

2. Fertilizer problem

(1) specific reason: like water, too much or too little fertilizer may lead to blackening of leaves.

(2) solution: there is a general principle of fertilization, that is, "thin fertilizer is applied frequently". Of course, "diligence" does not mean that the number of times can be too much, appropriate is the best. The most important thing is the concentration, never too high.

3. Air humidity problem

(1) specific reasons; in addition to watering, the humidity of the air also affects it. If it is too low, it will also cause the leaves to turn black.

(2) solution: specifically, it is better to keep it at 60% to 80. We can improve it by putting a basin of water next to it, or by spraying some water mist around it.

4. Light problem

(1) specific reason: this kind of plant requires a semi-shaded environment. Then, if the light is too strong, it is bound to burn the leaves and blacken them.

(2) solution: observe the position of the plant and whether it will be illuminated directly. If it can, then it must be adjusted in time.

5. Disease problem

(1) the specific reason: specifically, it is "brown spot". At the beginning of the attack, there were some small spots. Later, the whole leaf may turn black.

(2) solution: get rid of the infected leaves first. Then, spray some medicine, such as chlorothalonil.

 
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