Can you go on beer if the camellia leaves are yellow

Beer can be served.

Beer, which contains a lot of amino acids, a small amount of alcohol, and a small amount of sugar. Spraying beer solution on the foliar surface of flowers can play the role of topdressing amino acids outside the roots, which can be directly absorbed by flowers, thereby significantly increasing the chlorophyll content, promoting the growth of flowers, and keeping the leaf color bright and green. The application of beer should not be strong, generally 1 part of beer is added to 2 parts of water and then stirred and sprayed, and it can be sprayed once a day during the growing season.

Spraying every 15 days or so in autumn and winter can effectively improve the cold resistance of flowers and reduce the phenomenon of leaf fall due to low temperature. When spraying, both the front and back of the leaf should be sprayed, because the front and back sides are distributed with leaf pores, which can promote absorption. Since beer contains a small amount of alcohol, it also has insect repellent and bactericidal effects.

The leaves are yellow, generally for the following reasons:

Water yellow The young leaves are dark yellow and dull, the old leaves have no obvious changes, the branches are small yellow-green, and the new shoots are shrunk and not long, indicating excessive watering. Depot the flowers, put them in a ventilated and cool shade, and dry the soil ball before putting them back into the pot.

Dry yellow The yellow of lack of water is different from the yellow of more water, the yellow of lack of water is the withering and dry leaf tips or edges, and the old leaves are withered and yellow from the bottom to the top, but the growth of new leaves is relatively normal. Pay attention to watering when watering enough, water thoroughly.

Burning yellow strong sunlight directly on some shade-loving flowers (such as spider plant, hosta, etc.) is easy to cause the leaf tips and leaf margins of flowers to wither, and the sunny part of the leaves appears yellow spots. Move to the pubic area.

Lack of light yellow long-term shade environment, the leaves do not get enough sunlight, can not form chlorophyll, the whole leaf turns yellow and then falls off, supplemental light can avoid this disease.

Fat yellow. The yellowing of flowers caused by excessive fertilization or excessive concentration is manifested in dry brown at the top of the new leaves, and the general leaf surface is thick and dull, and the concave and convex are not stretched, and the old leaves are scorched and yellow. Fertilization should be stopped immediately, and part of the fertilizer should be washed with plenty of washing in severe cases.

Lack of fat yellow is manifested in the color of young leaves becoming lighter, yellow or light green, while old leaves are more normal or gradually turning from green to yellow. Check the potting soil, if there is a dry knot, the soil should be changed, and the thin fertilizer should be applied frequently and some alum water should be poured in a timely manner.

There are many reasons for the yellowing of camellia leaves, including maintenance and management factors, as well as physiological factors.

The yellowing or whitening of leaves occurs in summer because the soil is deficient in nutrients such as phosphorus, iron, or sulfur, so it can be cultivated with humus-rich mountain mud by changing the potting soil. From April to September, every 15 days, foliar sprays with 300 times diluted ferrous sulfate solution or trithionphos solution can alleviate the symptoms. Spraying should be done on cloudy days and early morning or late afternoon on sunny days.

If the nitrogen element ** is insufficient, there will also be yellowing of the leaves, you can apply rotted bean cake water, once a month, the ratio of fertilizer to water is 20 to 30. If you add 1 more person. Ferrous sulfate solution in fertilizer solution, the effect is better.

If not watered properly, persistent drought or excessive humidity can also cause yellow leaves. If the potting soil is too wet, the root system of the plant will turn black and rot, causing the leaves to turn yellow and fall off. On hot and sunny days, although the plants are shaded by curtains, the potting soil is often dry, which will also cause the leaves to turn yellow and fall off.

Rubikite spiders or scale insects can also cause yellowing of leaves. Red spiders can be sprayed with 25 dimethoate with water 1000-1500 times, or 50 dimethoate with water 2500 to 3000 times; Scale insects can be sprayed with 5 dimethoate aqueous solution.

Camellia is an evergreen tree, the leaves do not fall off 2-3 years after the formation of new shoots, but in the leaf-changing period of April to May, a small number of old leaves will also turn yellow and fall off, which is a normal phenomenon.

Camellia must be familiar to everyone, this is a very common flower, but also a very good-looking indoor cultured flowers, with high ornamental value, but in the process of cultivation you may find that the leaves have yellowing, thenWhat is the cause of the yellowing of camellia leaves？What to do? Below we will give you a detailed answer, I hope it can be helpful to you.

What is the cause of the yellowing of camellia leaves

Reason 1, normal yellowing:

Although camellia is an evergreen plant, but when it is cultivated, the leaves will generally not fall off between 2-3 years, but it will still change the leaves, and during April and May, part of the old leaves of the camellia will turn yellow and then fall off, which is a normal metabolic phenomenon.

Reason 2: Lack of growth elements:

When cultivating camellias, if there is a lack of nitrogen, the leaves will turn yellow, and fertilizer should be supplemented in time. Generally, you can apply well-rotted soybean cake water once a month, or add 1% ferrous sulfate solution to supplement the growth elements that camellia lacks in growth.

Reason 3: Soil problems:

The yellowing of camellia leaves can be caused by the soil, which includes the pH of the soil as well as the nutrients of the soil. Camellias are plants that prefer acidic soils, but in northern regions the soil solution is alkalized, which causes its leaves to turn yellow. There is also the gradual loss of nutrients in the soil, which makes it insufficient and the leaves lose their green.

It is best to change the potting soil for the camellia regularly, and the soil is rich in humus. Foliar fertilizer can be sprayed on camellias, which can slow down the symptoms of yellowing of leaves.

Reason 4, watering problem:

The watering problem is mainly said to be too dry or too wet for a long time, which will lead to yellow water and dry yellow. If you water too much, the potting soil will be too moist and produce stagnant water, which can easily cause the roots of the camellia to rot, causing the leaves to turn yellow and lose the leaves. Lack of watering, prolonged drought or dry air will cause it to lack water and the leaves will turn yellow.

Therefore, when cultivating camellias, it should be noted that reasonable watering is better to keep the soil moist but not waterlogged.

Cause 5, caused by pests and diseases:

When cultivating camellias, if you encounter pests and diseases such as red spiders and scale insects, it will cause harm to the plant, causing the leaves to turn yellow, and the whole plant will be affected if the leaves fall off severely. In the event of red spider damage, 50% trithion solution can be used to spray and kill, and scale insects can also be sprayed with special agents, which is best to be reasonably maintained and prevented in advance.

The above is what is the reason for the yellowing of camellia leaves brought to you? What to do? All of it.

There are many reasons why camellia leaves turn yellow. If it is due to soil alkalinization, it is necessary to water ferrous sulfate solution to reduce the pH value. If it is due to nutrient insufficiency, a little nitrogen fertilizer needs to be applied appropriately.

If it is because there is too little watering, it is necessary to replenish the water in time. If it is because of pests and diseases, it is necessary to cut off the diseased leaves and spray carbendazim and other pesticides for control.

1. Maintain the environment.

Camellia has certain requirements for the maintenance of the environment, camellia is a semi-shade-tolerant plant, in the summer of the hot season at noon try to do a good job of shading, too strong light will make the leaves of the camellia yellow, roll deformity, discoloration, etc., after entering the autumn and winter, it needs more and more light, in order to facilitate the differentiation of flower buds.

2. Soil. Camellia requires good soil drainage and is best slightly acidic sandy loam soil and clay loam soil, because its root system is relatively delicate, so it requires a slight viscosity of the soil, too loose is not conducive to its growth.

3. Moisture. Camellia requires sufficient humidity in the air, and it is best to keep the potting soil slightly moist, too dry and long-term water accumulation are not conducive to the normal development of its root system. In addition, you can choose to use potassium dihydrogen phosphate at the same time of watering to ensure that the environment in which it is located is normal and to replenish nutrients.

Fourth, temperature. The ideal overwintering temperature should be around 5 degrees, and the high temperature in summer will also inhibit the growth of camellia to a certain extent.

5. Precautions.

Camellia in the growth process requires a slightly acidic environment, if it is alkaline, yellowing will occur, and other pests such as scale insects, red spiders, aphids and some other pests, in the maintenance of our observation at any time to prevent and control it.

Answer: Unreasonable watering causes leaf yellow to water too much or too little camellia on weekdays, which has an impact on the growth of camellia, and more or less are easy to cause leaf yellow and falling off; If the potting soil is too dry, the leaves are easy to curl, wilt and yellow; If the potting soil is too wet, it is easy to cause root rot and yellow leaves, and in severe cases, the whole plant will die. What to do first of all, the watering of camellia on weekdays must control the amount of watering and watering frequency, camellia in the spring and summer growth period, the temperature rises, the water demand increases, generally watering once every 10 days, and the high temperature in summer should be watered once in the morning and evening.

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There are many reasons for the yellowing of camellia leaves, and some plants often have yellowing and whitening in summer, which is due to the lack of nutrients such as phosphorus, iron or sulfur in the soil. If this disease is found, the original potting soil can be replaced with humus-rich mountain mud, and in addition, from April to September, it can be diluted 300 times with ferrous sulfate extract every 15 days, or sprayed with a trithionphos solution, which can alleviate the disease. Spraying should be carried out on cloudy days, and early morning or evening should be appropriate on sunny days.

Nitrogen deficiency in the plant**, there will also be yellowing of leaves, you can apply decomposed soybean cake water, 2 times a month during the growing season, the ratio of fertilizer to water can be mastered 10%-20%. If ferrous sulfate is added to dissolve in the fertilizer, the effect is better.

In addition, persistently too dry or too wet watering can also cause yellow leaves. Camellia enters the spring and summer growth period, the temperature rises, the water demand increases, and it is necessary to water once every 1-2 days. On hot and sunny days, the plants are watered once in the morning and evening, although they are shaded by curtains.

In addition, spider mites or scale insects can also cause yellowing of leaves.

Camellia sinensis begins to germinate when the temperature rises above 10, and stops growing when it is above 30, and the optimal temperature for growth is 15 18. Camellia likes high air humidity, avoid dryness, and require good soil drainage, so as not to cause water to cause roots to clear the bureau or rot to death. Camellia prefers fertile, loose and slightly acidic soil, and the pH is preferred, and the alkaline soil in the north is not suitable for the growth of camellia.

To solve this problem, a solution of ferrous sulfate should be regularly applied to the potting soil, adjusting the pH.