What if the leaves of azaleas turn black?
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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What if the leaves of Michelia mollissima turn black?
After the leaves turn black, it will seriously affect the effect of watching. In order to solve this problem, we should understand its possible causes. One of the most likely is that the environment is too humid, the corresponding measure is to regulate moisture. In addition, the concentration of fertilizer is too high, or the amount is too high, the measure is naturally to adjust the method of fertilizer use. The next situation is the threat of bacteria and other bacteria, so it is natural to spray to deal with these harmful bacteria.
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What if the rhododendron leaves are dry?
There are many reasons for this situation. First of all, there is the problem of temperature and humidity discomfort. We need to ensure that the temperature is 15 to 30 degrees and the humidity is 60%. Then there is the light, long-term shady environment, or the light is too strong may make the leaves withered, the need to adjust the light time. Then there is water and fertilizer, which mainly includes too much or too little water, as well as too much fertilizer. So, what we need to do is to determine the specific reason, and then adjust the maintenance strategy.
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