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Generally speaking, the cause of yellowing of leaves can be found from several aspects such as watering, fertilization, soil pH, light, air, pests and diseases. 1. Improper watering: too little watering and too much watering will cause the leaves to turn yellow, the difference is that when there is a lack of water, the leaves start to wither from the edge and turn yellow, just like the picture below.
When you water too much, the new leaves of the plant turn yellow first, and the old leaves generally do not change much. Like the following. 2. Improper fertilizationSimilarly, too little or too much fertilization will cause the leaves to turn yellow.
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The root system of the plant is damaged, usually either because of the water or because of the prolonged drought. If it is watery, the rotten roots can be removed from the soil and replanted according to the situation, and if it is drought, watering can be done.
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The leaves are yellowish and fall off. Indicating the lack of fertilizer, multi-element compound fertilizer should be applied, and foliar spray of potassium dihydrogen phosphate or a spray of green can solve the problem.
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In my personal experience, the reasons for defoliation are as follows: 1) Insufficient fertilizer. Fertilization is sufficient.
2) Poor ventilation. It can be placed on the balcony for ventilation. Let it soak up the sun.
3) Improper watering. Caused by waterlogging in large basins. Because the damaged root system can not be recovered for a while, of course, it will continue to fall leaves, and then pay attention to dry and water thoroughly, so that it can recover slowly, do not be anxious, and do not water the roots at this time.
4) Rotten roots: If there are yellow leaves, and the leaves are dropping. Then change the soil and remove the rotten roots. 5) Pest Look for small bugs (red, white, black) on the back of the leaves, your bonsai is likely to have red spiders (so small that you can barely see them, look closely), or the leaves are very curled.
If there is any of the above, it is recommended to buy insecticides (bags and bottles) at the place where the flowers are soldSomeone in the family smokes, leave the cigarette butts, and use a dozen cigarette butts to soak in unused utensils (a little more water).After a day, take a bath (once a day) with soaking water (smoke water).
It will be fine after a while. 6) Normal phenomenon (with premise) When you just move home, you will keep falling off the leaves within 2 months, but don't worry, the new leaves are also the same as the long (will be very soon) Don't think about moving around, just fix a place, and don't be afraid of watering more or less (the soil is very dry, just water a little more at one time).After 2 months, all the old leaves will be replaced with new leaves, that is, the leaves will not fall off again if the leaves grow in an environment like your home.
It will continue to grow lushly.
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Summary. Hello dear, 1. Too much light Performance: Strong light will burn the leaves and scorch yellow, the leaf edge and leaf tip will be yellow and dry, and the direct light part will have yellow spots.
Solution: Cut off the burned yellowed and withered leaves, put them in a cool place to breed, and slowly wait for recovery.
What to do if the leaves are yellow.
Hello dear, 1. Too much light Performance: Strong light will burn the leaves and scorch yellow, the leaf edge and leaf tip will be yellow and dry, and the direct light part will have yellow spots. Solution: Cut off the burned yellowed and withered leaves, put them in a cool place to breed, and slowly wait for recovery.
1.Remedies for yellowing of leaves: 2
Reasonable light to make the leaves more vibrant; 3.To improve the soil, we need to change the soil regularly; 4.Adjust the sprinkling or fertilization, when the plant grows and maintains, the application of water and fertilizer will affect the growth.
5.There are many reasons why the leaves turn yellow, first of all, the most important point is the abundant sunlight, which may be caused by improper application of water and fertilizer, or it may be caused by pests and diseases.
If it is caused by improper application of water and fertilizer, you should insist on seeing dry and wet, apply thin fertilizer frequently, and if the roots are rotten, the rotten roots need to be cut off. If the soil is compacted, barren, or alkaline, the soil conditions should be improved. If it is caused by pests and diseases, it needs to be sprayed in time.
There are many reasons for the yellowing of leaves, if it is caused by improper light, it can be reasonably seen, shade-loving plants should avoid strong light, and light-loving plants need to fully see light. If it is caused by improper application of water and fertilizer, you should insist on seeing dry and wet, apply thin fertilizer frequently, and if the roots are rotten, the rotten roots need to be cut off. If the soil is compacted, barren, or alkaline, the soil conditions should be improved.
If it is caused by pests and diseases, it needs to be sprayed in time.
1. The yellowing of the leaves of plants that are reasonable to see light may be affected by light. Not only the lack of sunlight, but also too much sunlight can cause the leaves to turn yellow and the plants to weaken. Plants that like light need to see light sufficiently, and plants that like light need to see light sufficiently, which can promote the smooth progress of photosynthesis and promote the greening of leaves.
2. When adjusting the growth and maintenance of water and fertilizer plants, the application of water and fertilizer will have an impact on the growth. If there is insufficient watering and fertilization for a long time, it will cause poor growth of the plant and cause the leaves to turn yellow. If you water too much and fertilize too much, it will cause the roots to be unbearable, causing the roots to rot, which will lead to yellow leaves.
Usually should be reasonable watering, fertilization, watering adhere to see dry and wet, fertilization should keep thin fertilizer diligent, in case of too much watering, need to promote the discharge of stagnant water in time, if too much fertilization, should be watered in large quantities or directly change the soil. If the roots are rotten, the plant should be removed and pruned to remove the rotten roots.
Third, improve the soil soil compaction, barren, impermeable, alkali will cause yellow leaves of plants, can regularly change the soil of the plant, timely loosen the soil to keep the soil loose, breathable, lack of fertilizer in time to apply organic fertilizer. For acid-loving plants, ferrous phosphate solution can be watered to adjust the acidity and alkalinity. Fourth, ** pest and disease plants infected with pests and diseases will also lead to yellow leaves.
It is necessary to strengthen ventilation and spray pests and diseases in time.
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1. Improve the soil.
Reason: The leaves of magnolia trees are yellowing and falling, which may be caused by unsuitable soil. It is suitable for growing in slightly acidic soils, and if kept in alkaline soils, it may limit growth, cause damage to roots, lead to poor growth, and cause yellowing and defoliation.
Solution: You can mix some humus soil, pine needle soil, etc. into the soil, which can improve the acidity and alkalinity of the soil, and you can also pour an appropriate amount of ferrous sulfate solution into the soil.
2. Reasonable fertilization.
Reason: The yellowing and loss of leaves of magnolia may also be related to the lack of nutrients. If the fertilization is insufficient, the soil will be poor, so that the soil will not have enough nutrients to maintain normal growth, which will lead to yellow leaves and shedding.
Solution: Reasonable topdressing for magnolia, nitrogen fertilizer at the leaf stage of branch extraction, and topdressing of phosphine and potassium fertilizer at the flower bud differentiation stage.
3. Promote drainage.
Reason: If magnolia is planted in a low-lying location, it will cause water accumulation in the soil after rain, or too much watering for a long time, which will cause the soil to be too wet, which will affect the roots, resulting in yellow leaves and leaf loss.
Solution: Set up a drainage ditch in time to promote the discharge of stagnant water.
Fourth, the prevention and control of pests and diseases.
Reason: If it is not properly maintained, it may cause magnolia to suffer from pests and diseases.
Solution: Cut off the branches and leaves with pests and diseases in time, and spray fungicides or insecticides accordingly.
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The leaves of the beckoning tree turn yellow and fall off their leaves. How.
Problem 1: Caused by low temperatures.
The Fortune Tree is suitable for high temperatures, growing between 25-30 degrees Celsius. Before the weather changes from warm to cold, the temperature is cold, and the leaf tissue will be injured and fall. Water less at low temperatures. If it's the south, it won't be fine, water less, and water it after the pot dries.
Problem 2: Too much water, causing the roots to rot, although the main stem has not yet seen the rot, but the leaves will appear, just like a person is sick, the first will be shown on the face. The truth is the same.
Problem 3: Excessive fertilization will cause the edges of the leaves to burn or turn white as the whole leaf. The soil in the pot cannot be moved in this season, and the soil in the pot may hurt the roots, and it is not easy to heal in this season.
Only remove the floating soil on top with visible fertilizer. and water to dilute. Pour it several times.
After the water flows out. After a few days, water the soil after it has dried.
Question 4: Fortune tree just bought in winter.
It should be noted that it cannot be blown by the phoenix, and if it is blown by the cold wind for a long time, and the outdoor temperature is 6 degrees, it will be about 2 degrees on the top of the transported car. The leaves turn yellow when they arrive home. When buying, pay attention to the need for protection of leaves. Wrap in newspaper or plastic paper.
Hope it helps friends with your questions!
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The common causes of yellowing and leaf loss of plant leaves and the prevention and control methods are introduced as follows:
Dry yellow: the yellow of lack of water is not the same as 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. Solution: Pay attention to watering when watering enough, water thoroughly.
Lack of fat yellow: It 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. Solution: To check the potting soil frequently, if there is a dry phenomenon, the soil should be replaced, usually thin fertilizer is applied frequently, and some alum water should be poured in a timely manner to supplement iron.
Lack of light yellow: If the leaves are shaded for a long time, the leaves cannot get enough sunlight to form chlorophyll, and the whole leaves turn yellow and then fall off. Solution: Timely supplemental light exposure can prevent the disease.
Fat yellow: the yellowing of flowers caused by excessive fertilization or excessive concentration is manifested in the dry brown appearance at the top of the new leaves, the general leaf surface is thick and dull, and the concave and convex are not stretched, and the old leaves are scorched and yellow. Solution: Fertilizer should be stopped immediately, and part of the fertilizer should be washed with a large amount of cleaning.
Burning yellow: strong sunlight directly shines on some shade-loving flowers (such as spider plant, hosta, etc.), which is easy to cause the leaf tips and leaf edges of flowers to wither, and the sunny part of the leaves to appear yellow spots. Solution: In summer, when the sun is too strong, move the plants to semi-shade or shade.
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. Solution: Depot the flowers and put them in a ventilated and cool place to dry the soil and then put them back into the pot.
Most plants have to photosynthesize, of course, it is not excluded that some plants do not need to survive by photosynthesis, and the leaves of these plants are not necessarily green.
Cut off the dead leaves, spray the pages with methyl tobuzin, and put them in a ventilated place, taking care not to let the sun shine directly.
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