What is the reason why the osmanthus leaves are yellow and the tips of the leaves are withered?

1. Watering problem: osmanthus tree.

It is a tree that is very afraid of waterlogging, long-term water soaking the roots will cause the leaves to dry up and yellow, and in severe cases, it will lead to black and rotten roots, the first manifestation is that the tips of the leaves begin to wither yellow, slowly extend to the entire leaves and branches, sometimes lead to leaf loss, and finally the plant will die.

Therefore give the osmanthus tree a potted plant.

When watering, we need to master the ways and means to water according to the principle of watering thoroughly if it is not dry or watered. Once it is found that there is stagnant water in the potting soil, it is necessary to find a way to remove the stagnant water, and then enhance the drainage of the pot, so that the osmanthus tree will not cause the leaves to turn yellow and dry in terms of watering.

2. Light problem: osmanthus is a plant that likes light, if it is cultivated indoors for a long time in a place with insufficient light, it will cause a lack of light and the leaf tips are dry and yellow. On the contrary, if the potted osmanthus tree is exposed to the sun, especially in summer, it will cause the water to evaporate too quickly and cause the leaf tips to dry up and turn yellow.

Therefore, it is best to place the osmanthus tree in a place with sufficient scattered light, and it is recommended to maintain it in semi-shade when the sun is relatively strong. At the same time, we can change a relatively large pot for the osmanthus tree, which can be filled with a little more soil, which can retain more water and nutrients, and prevent it from being found to evaporate too strongly and turn yellow and dry up in summer.

3. Humidity problem: when it is hot in summer, there is more water evaporation, and when it is low in winter, the air is drier, and these air humidity.

Low conditions will also cause the leaf tips of the osmanthus tree to begin to dry up and turn yellow. Therefore, when the weather is hot and the air is dry, you can give it some foliar spray to cool down and moisturize, which can effectively prevent the leaf water evaporation too quickly and the phenomenon of water deficiency drying up and yellowing.

Watering problems. The soil of osmanthus should have good air permeability and be afraid of waterlogging. It is best not to dry and not water, and water thoroughly every time. Afraid of waterlogging and waterlogging, if it is harmed by waterlogging, the root system will be black and rotten, the leaf tip will be scorched and withered, and then the whole leaf will wither and fall off, which will lead to the death of the whole plant.

Caused by small fertilizer: insufficient fertilization, especially for a long time without nitrogen fertilizer or not changing the potting soil, the lack of nitrogen nutrition in the soil, resulting in thin branches and leaves, thin and yellow, need to pour the pot in time, take out the plant, replace it with a larger pot, load it with a new loose and fertile soil, and replant it. After watering thoroughly, put the seedlings in a semi-bright place.

After its growth resumes, thin liquid fertilizer or compound fertilizer is applied.

1.Excessive sun exposure.

Osmanthus likes strong light, high temperature resistance, sex likes warm and moist, not resistant to severe cold, must be planted or placed in a very sunny and well-ventilated place, balcony and indoor is not easy to raise osmanthus. The scorching sun in midsummer should be slightly shaded, otherwise the leaf tips or leaf margins will be scorched.

2.Lack of water. Osmanthus likes sandy loam soil with good drainage and high humus content, and avoids salt, alkali, stagnant water, soot and pollution.

New shoot growth peaks in mid to late April, and flower buds begin to differentiate from late May to early June. Osmanthus grows at a suitable temperature of 15 30, can withstand 5 low temperatures, the optimal relative humidity is 70% 80%, the air is too dry, there will be yellow leaves, dry tips, dry spots.

3.Frost damage. When the temperature is lower than 7 for a few days, there will be frost damage, showing that the leaf tips are dry or deciduous, so most of the potted osmanthus flowers are wintered indoors.

4.Disease. At the beginning of the onset of brown spot disease, small yellow-colored spots appeared on the leaves, which gradually expanded into near-round spots with a diameter of 2 10 mm, or became irregularly shaped lesions due to the restriction of leaf veins due to the expansion of the lesions.

Lesions are yellowish-brown to grayish-brown with yellow halos on the outer edges of lesions. In the later stage, the lesions are covered with black mold, that is, the conidia and conidia of the pathogenic bacteria.

Spring osmanthus plant germination and leaf extraction to leaf hardening, spray 1 2 100 lime multiple Bordeaux solution every half month, can prevent the occurrence of the disease, the initial stage of the disease, spray with 50% polysulfur suspension 800 times, or spray with 50% carbendazim plus 75% chlorothalonil 500 times, or spray with 50% of zeb 800 times, and can also use 25% propiconazole emulsion 5000 times liquid spray, with an interval of 4 8 days. When the seedlings in the hard-hit areas are out of the nursery, potassium permanganate solution can be sprayed for sterilization.

Supplementary information: Osmanthus, also known as Cinnamomum sylvestris, is an evergreen woody flower of the family Cinnamomum sylvestris, the flowering period is from September to early October, and the edible part is flowers. Evergreen shrubs or small trees.

Up to 13m. Leaves leathery, elliptic to elliptic, 4 12 cm long, 2 4 cm wide, apex acute or acute, base wedge-shaped, whole margin or upper half sparsely serrated, lateral veins 6 10 on each side, reticulated veins indistinct, concave above, raised below, petioles about 2 cm long.

Osmanthus leaves have these symptoms, indicating that they are calling for help, and it is difficult to survive if they are not treated.

Answer pro, the reasons for the scorching of the young leaf tips of osmanthus: 1. The dry up of the leaf tips of osmanthus is likely to be caused by too strong light, and the osmanthus needs sufficient scattered light, and the long-term exposure to the strong light environment will sunburn the leaves of the plant, causing the leaf tips to dry up. Solution:

It is necessary to take corresponding shading measures, move the position of the plants or build an awning, so that the osmanthus grows in a semi-shaded environment. 2. The temperature is not suitable for the warm environment of osmanthus flowers, the most suitable temperature for growth is about 20, when the temperature exceeds 30, less than 15, the growth of the plant will be affected, and the leaves will dry up if not treated in time. Solution:

Control the temperature of the environment, if the temperature is too high, it should be shaded and ventilation should be strengthened in time, and if the temperature is too low, it should be moved indoors to keep warm. 3. The soil is not suitable for cultivating osmanthus potted plants, requiring 1 2 years to replace the soil, and if the soil is not changed for a long time, it will lead to soil compaction, affecting the permeability of the soil, and the plants can not grow normally, and the leaves will dry up. Solution:

The osmanthus is treated with soil change, and the new soil is replaced with new maintenance to provide a better growth environment for the plant. 4. The growth of too much fertilization osmanthus needs appropriate nutrients, and the principle of fertilization should be mastered by applying more thin fertilizer, once the fertilization is too much and too concentrated, it will burn the roots of the plant and cause its leaves to dry up. Solution:

Immediately stop fertilizing the osmanthus and increase the amount of watering at the same time so that the excess fertilizer flows out of the bottom of the pot with the water.

The above is all my reply, I hope to help your relatives, I wish you a happy life.

The yellow leaves of osmanthus leaves and the wilting of the leaf tips may be due to the strong light, the plants are sunburned, and the strong light in summer must be blocked in time, and water must be sprayed frequently. It may also be that the temperature is too high, and the water in the leaves evaporates too quickly in a high temperature environment, which can also easily lead to yellowing of the leaves.

Strengthen ventilation when the temperature is high, and spray water frequently to cool down. It may also be infected with diseases, common leaf spot, cut off the diseased leaves in time after being found, and spray drugs. In addition, improper watering is also prone to this situation, and it is necessary to provide water reasonably.

Although the osmanthus loves the light, it is afraid of the scorching summer sun. If you don't block the strong light in time in summer, long-term exposure to the sun will cause sunburn to the leaves, and the leaves will turn yellow and the tips of the leaves will dry up. To shade as soon as possible, the ground planting can be set up with a shade net, and the potted plants can be moved to a semi-shaded and ventilated place.

Osmanthus prefers a warm environment, with temperatures between 18 and 28 degrees Celsius at its best. It has limited resistance to high temperatures. If it is exposed to high temperature for a long time, the water of the leaves will evaporate too quickly, and the leaves will easily turn yellow or even dry out.

In this case, ventilation should be strengthened, and water should be sprayed frequently to help it cool down.

1. Long-term water shortage.

Reason: Osmanthus leaf tips are yellow and dry, it is likely to be caused by long-term neglect of watering, if the root system can not absorb water, the leaves will not be replenished with water, and the leaf tips will be dry and yellow.

Solution: Water it in time, and it will recover quickly.

2. Sun exposure.

Reason: If the plant is maintained indoors for a long time, if it is suddenly moved outdoors to the scorching sun, it is difficult for the plant to adapt to the changes in the environment for a short time, and the leaf tip will be scorched, resulting in yellowing and drying.

Solution: It is necessary to gradually improve the light conditions of the maintenance environment to avoid stress reactions of plants, especially in summer, if it is maintained outdoors, it is necessary to gradually increase the light intensity of the maintenance environment, or take shading measures.

3. Diseases and pests.

Reason: When osmanthus is infected with pests and diseases, due to the invasion of diseases and insect pests, the leaf tips will also turn yellow and dry.

Solution: It is necessary to remove and destroy the diseased leaves in time, and take drugs in time for the condition. It also needs to be maintained in a well-lit and well-ventilated location outdoors to avoid the recurrence of pests and diseases.

Fourth, fertilizer burns roots.

Reason: In the process of growing osmanthus, it is necessary to apply fertilizer on time and in the right amount, such as Trim water-soluble fertilizer, if you apply too much fertilizer at one time, the root system of the plant can not be absorbed, and too much fertilizer will burn its root system.

Solution: Clean up the excess fertilizer from the pot in time, and water to dilute the concentration of fertilizer in the soil, if the situation is more serious, you need to replace it with new potting soil to avoid the death of the plant.

Summary. When the leaves of osmanthus are yellow and the tips of the leaves wither, it may be that the soil has been in a state of drought for a long time, resulting in weak root growth, affecting the transportation of water and nutrients to the leaves, making the leaves grow poorly, resulting in the wilting of the leaf tips. If the light is too strong for a long time, the osmanthus will be kept in a strong light environment, which will cause the leaves to be burned, resulting in serious water loss, and the leaves will be dry and yellow due to lack of water.

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When the leaves of osmanthus are yellow and the tips of the leaves wither, it may be that the soil is in a state of drought for a long time, resulting in weak root growth, affecting the transportation of water and nutrients to the leaves, making the leaf growth hall rock poor, resulting in the wilting of the leaf tips. If the osmanthus is kept in a strong light environment for a long time, it will cause the leaves to be burned, resulting in serious water loss, and the leaves are dry and yellow due to lack of water.

Three reasons for pro Oh long-term lack of water and scorching sun exposure: disease and insect pests.

The reasons for the yellowing of osmanthus leaves and the wilting on the tips of the leaves include strong light exposure, high temperature, infection, improper fertilization, watering problems, etc.

1. Strong light exposure.

Osmanthus likes light but is not coarse and sun-resistant, long-term exposure to strong light, will cause sunburn of branches and leaves, yellowing and wilting, at this time to pull on the top of the osmanthus shade net, weaken the light intensity, water it, keep the soil in a moist state.

2. The temperature is too high.

Osmanthus is suitable for growing in an environment of 15-28 degrees, if the ambient temperature is higher than 35 degrees for a long time, the moisture in the leaves will be lost rapidly, resulting in the phenomenon of dry silver stool and yellow leaves, so when the temperature is too high, it is necessary to spray water mist for the branches and leaves of osmanthus to cool down, and regularly ventilate.

3. Infection with diseases.

Osmanthus is infected with leaf spot disease in the process of growth, and the leaf blades will be yellow and dry, at this time, it is necessary to use sterilized scissors to cut off all the yellowing and dry leaves, and gather them together to burn them with an open flame, and then spray the osmanthus once a week to promote the recovery of the solution, spray it continuously for a month, and the plant can grow healthily.

4. Improper fertilization.

In the process of fertilizing osmanthus, the fertilizer is splashed on the leaves, which will cause the leaves to burn, yellowing and wilting, you can wipe the leaves with a damp cloth to remove the fertilizer water, and when fertilizing in the later stage, the fertilizer water should be poured into the soil to avoid the leaves and rhizomes from directly contacting the fertilizer.

5. Watering problems.

Osmanthus is very afraid of waterlogging, if the roots are soaked in water for a long time, it will cause the leaves to dry up and turn yellow, and in serious cases, it will also lead to black and rotten roots. Osmanthus water is the first thing that the tip of the leaf begins to wither and yellow, and slowly extends to the entire leaf and branch, so when watering the osmanthus, it is necessary to water it according to the principle of not drying it and not watering, and watering must be watered thoroughly.