Why do rhododendron leaf tips always dry up?

It is a relatively common phenomenon that the dry tips of azalea leaves turn black, and many flower friends are helpless when encountering this situation. Some people say that the dried and black leaves of the azalea are rotten roots, some people say that the dry and black tips of the azalea leaves are dehydrated, and some people say that they are ......There are many theories, what is the reason for the blackening of the dry tips of the rhododendron leaves, you need to judge according to the other symptoms of the leaves, and you can't just draw conclusions from the dry tips, my opinion is as follows.

If the dry tip of the rhododendron leaf is black but does not fall off, and it cannot be torn off, it means that the leaf is not dystrophic, or there is normal water and nutrient transport, but the amount of transportation is not enough or the leaf tip is quickly dried out due to external factors. Generally, there are three reasons for this situation: strong light, low humidity, and impermeable planting medium, let's analyze them one by one.

If it is the blackening of the dry tip of the rhododendron leaves caused by strong light, it is often obvious on the upper or sunny side, and not obvious on the lower or backlit side, which can be solved by improving the light in time. If it is the black dry tip of the rhododendron leaves caused by low humidity, it is often the old leaves below that give priority to the problem, and the new leaves on the top are better, pay attention to more surrounding and foliar sprays, and use a humidifier if necessary, the problem can be solved.

If it is the planting medium is not breathable to cause the dry tip of the rhododendron leaves to be black, there is no rule, the new leaves and old leaves will have problems, the color of the dry tip is darker, it is necessary to control the watering in time, properly loosen the soil, and when it is inconvenient to change the medium, put the pot up, let the pot bottom be overhead, and increase ventilation and breathability.

If the rhododendron leaves are dry and black, and the leaves fall at the same time, it means that the leaves are out of nutrition, and the water and nutrients are seriously out of balance. Generally, the reasons for this are: rotten roots.

Rhododendron rotten roots are divided into slight rotten roots and severe rotten roots, only a small part of the rhododendron leaves are dry and black, a small number of leaves fall, water control, ventilation, astigmatism maintenance, or relatively easy to slow down and return to normal. Most of the rhododendron leaves are dry and black, a large number of leaves fall off, and the root system needs to be checked after depotting, pruning off the rotten part and drying it with a sterilization solution and replanting, the possibility of returning to normal is much lower, and many of them are tossed for a long time and finally die.

The blackening of the dry tips of the most common rhododendron leaves is mostly caused by improper watering, and the capillary roots have not yet rotted, but when there is a lack of oxygen, the leaves are dry and pointed but do not fall. The capillary roots have rotted, and the leaves will dry and tip at the same time. Therefore, if you find that the rhododendron leaves are dry and black, you need to find the cause in time to solve it, don't wait, the situation will be more serious if you wait.

Why is it easy to dry up the leaves of the azaleas that you buy and maintain them for a period of time?

This is because its nutrients can no longer be well provided to the tip of the leaf, so it is necessary to fertilize it at this time, and spray the surface of its leaves with water, which can also make its leaves more green.

Overwatering. If watered frequently, the pot soil will be too wet for a long time, which will cause a lack of oxygen in the soil, make some fibrous roots rot, hinder normal respiration and absorption of water and nutrients, and cause the leaves to turn yellow and fall off. When this phenomenon occurs, watering should be controlled in time, fertilization should be suspended, and the soil should be loosened frequently to make the soil aerated well.

Insufficient light.

If sun-loving plants are kept in a shady place all the time, they will result in thin, yellow branches and leaves that do not bloom or bloom very little. So move the pot to the sun in time.

Improper temperature. If the room temperature is too low, the rhododendron is susceptible to cold damage, which causes the leaves to turn yellow, and in severe cases, they wither and die. However, if the room temperature is too high, the transpiration of the plant is too strong, and the water and nutrients in the roots are in short supply, which will also make the leaves yellow. At this time, the room temperature should be adjusted in time.

Because there is not enough nutrient moisture transferred to the leaf tip.

The nutrients of the plants mainly come from the soil in which they are planted, and the quality and fertility of the soil will affect the growth of the plants. The absorption of soil nutrients mainly depends on plant roots. The roots absorb nutrients and water from the soil and transport these nutrients to the rest of the plant through pathways such as leaf veins.

And the leaf tip is the end point of nutrient transport and is also the most marginal part. Therefore, if there is very little water or nutrients to be absorbed, the leaf tips tend to start to wilt and turn yellow due to a lack of sufficient nutrients.

Therefore, it is necessary to ensure the fertility of the soil when planting cherry blossom plants, and apply fertilizer and watering regularly to ensure sufficient nutrients needed for the growth of plants.

Rhododendron leaves are black and dry at the tips? It turned out to be because of these wrong cultivation methods!

Summary. Dear We are happy to answer for you, and the following are the results for your query; Hello, the new leaf tips of azaleas are curled and dry, which is caused by the following reasons:1

Inadequate irrigation: Rhododendron needs plenty of water to maintain healthy growth, and if irrigated insufficiently, the tips of the new leaves will curl up and dry up. 2.

Soil that is too dry: Rhododendron needs the right amount of soil moisture, and if the soil is too dry, it can cause the leaves of the rhododendron to curl up and dry up. 3.

Pests and diseases: Rhododendron can be affected by pests and diseases, such as aphids, mites, etc., which can cause the rhododendron leaves to curl up and dry up. 4.

Improper maintenance: If the azalea is not properly maintained, such as over-fertilization, improper pruning, etc., it can also cause the leaves to curl and dry up. To address the above issues, you can take the following actions:

1.Watering at the right time to keep the soil moisture appropriate. 2.

Fertilize the rhododendrons regularly to keep the soil nutrient-rich. 3.Pay attention to the pest control of rhododendrons, and spray insecticides or fungicides in a timely manner.

4.Pay attention to the pruning of rhododendrons and avoid over-pruning, which will affect their normal growth.

Dear We are happy to answer for you, the following are the results of the orange wax for your query; Hello, the new leaf tips of azaleas are curled and dry, which is caused by the following reasons:1Insufficient irrigation:

Rhododendron needs plenty of water to maintain healthy growth, and if irrigation is insufficient, the tips of the new leaves will curl up and dry up. 2.The soil is too dry:

Rhododendron needs the right amount of soil moisture, and if the soil is too dry, it will cause the leaves of the azalea to curl up and dry up. 3.Pests and diseases:

Rhododendron can be affected by pests and diseases, such as aphids, mites, etc., which can cause the rhododendron leaves to curl up and dry up. 4.Improper maintenance:

Improper maintenance of the flowers, such as over-fertilization and improper pruning, will also cause the leaves to curl and dry up. In response to the above problems, you can take the following measures:1

Watering at the right time to keep the soil moisture appropriate. 2.Fertilize the rhododendrons regularly to keep the soil nutrient-rich.

3.Pay attention to the pest control of rhododendrons, and spray insecticides or fungicides in a timely manner. 4.

Pay attention to the pruning of the rhododendrons in the search shed, and avoid excessive pruning, which will affect its normal growth.

Due to direct sunlight and poor ventilation, the environment can be improved to prevent it.

In addition, there are other symptoms and solutions as follows:

1. If the rhododendron has yellow leaves on the front and red insect spots on the back, it is a red spider hazard, and the serious ones will fall leaves, and they can be sprayed with 40% of the chlordimol 1000 times of the three cracks, once every seven days, and can be removed three times in a row.

2. If the leaf surface is yellow and the leaf veins are still green, it is a symptom of iron deficiency, and the sulfur can be sprayed once in about ten days, and the concentration should not be too large, and the vinegar and fermented rice water also have a certain effect.

3. If you have brown spot disease, you can use chlorothalonil, carbendazim, killable, methyl tobuzin, etc.

4. The leaves are yellow or still very green, but when you touch the branches, the leaves fall with a bang, which is due to the light being too dark.

5. The rhododendron is wilted and drooping due to lack of water, and the new leaves are tender and white and yellowish for the long-term water bubble roots, if the leaves are wilted, but still green and not easy to fall, it is also caused by large water.

6. The leaves have uneven size or patches of black spots, mostly caused by black spot disease, pathogens, mostly due to the combination of water, poor ventilation and too weak light caused by bacterial infection, which can change the environment and drug prevention and control, and the medicine can refer to the source of the world examination for the treatment of brown spot disease.