What is the reason why camellia leaves turn brown, dry and fall off?

1. Overwatering. Camellia is drought-tolerant, afraid of waterlogging, excessive watering will make the roots rot, leaves black and fall off, drain the stagnant water and put it in a ventilated place, or replace the potting soil, the soil is dry and watering, avoid waterlogging, rainy weather is not suitable for watering.

2. Pests and diseases. The blackening of the camellia leaves may be infected with anthrax.

Cut off the diseased leaves in time and destroy them in a centralized manner, and spray 25% carbendazim wettable powder to avoid reinfection.

3. Improper fertilization. During the growth period, the appropriate amount of top dressing should not be applied too much potassium.

Fertilizer, otherwise the leaves will turn black and fall off, water to dilute the fertility, turn the soil or change the culture soil.

Soil compaction:

Camellia. It is suitable for growing in fertile and loose soil, and the planting soil is compacted, which will lead to damage to the roots of camellias, and the leaves can not absorb enough nutrients, resulting in the phenomenon of drying up and falling.

Camellia leaves turn brown and dry and fall off, which may be caused by too much light. Camellia is suitable for growing in a sunny environment, too strong light will make the camellia leaves fall off, at this time the camellia needs to be transferred to a ventilated and cool place for maintenance, later maintenance, need to weaken the intensity of light, in the light is too strong to build a shade net.

Camellia leaves turn brown and fall off, which may also be caused by excessive fertilization. Camellia has a low demand for nutrients during the growth period, and too much fertilization will cause fertilizer damage to the camellia, resulting in dry and falling leaves. Pots need to be watered with plenty of water to dilute the fertilizer in the soil.

Camellia is suitable for growing in loose and breathable soil, and if the soil is compacted, the roots of the camellia will be damaged, and the leaves will not be able to absorb nutrients, and it will dry up and fall. In this case, you need to use a shovel to loosen the surrounding soil and improve the air permeability of the soil.

Notes:

1. Camellia should avoid strong light, so we must pay attention to sunlight when planting, and require sufficient light in spring and autumn, but in summer, we must avoid being exposed to direct sunlight, as long as the camellia is exposed to strong light for too long, it is easy to die.

2. Camellia is not cold-tolerant or heat-resistant, its most suitable temperature is 18-25 degrees, so the ambient temperature is not too high and too low, otherwise it will affect its growth, especially in winter, the indoor temperature must be above 3 degrees, if it is lower than 0 degrees, it will be frostbitten.

1. Overwatering.

Cause: Overwatering produces stagnant water, which causes poor breathing in the roots, which will cause the camellia leaves to dry up and fall off. Workaround:

Drain the stagnant water from the pot and inspect the roots. Carefully remove the plant to see if the roots are rotting due to standing water. If so, it will be necessary to cut the grass and eradicate the roots.

Also, don't water too much and keep it moist.

2. Apply thick fertilizer.

Cause: Thick fertilizer burns the roots and leaves of the plant to fall off. Solution: Remove the plant from the pot and wash the roots with water. In addition, check the root wound and cut it off in time if there is any rotten root. After washing, replant with disinfected soil to reduce the amount of fertilizer.

3. Too much light.

Cause: Too much or too much light can burn the leaves, making them dry and less likely to fall off. Solution: Give shade to the plants, preferably in a well-ventilated semi-shaded place. Do not spend more than 5 hours of sunshine a day, and it is best to shout oranges in the early morning, away from the midday sun.

Fourth, pests and diseases.

Reason: There are many kinds of pests and diseases, and generally anthracnose will dry up the camellia leaves and not easy to fall off. Workaround:

The onset period is mostly in June to July, and the leaves are dry and hard, with some lesions. Anthrax is controlled with prescribed chemicals and placed in a moist and ventilated environment, with a certain amount of fertilizer added to improve its resistance. Rent state.

Camellia young leaves fall off is generally a problem of the roots, if the pot is waterlogged or too wet for a long time, coupled with the ventilation is not good for the evaporation of water, it is easy to guide the pants to close the root system to do pure rot, the root system problems will directly lead to the new leaves yellowing and falling, at this time you need to place the camellia in the environment of 15-25 degrees, the camellia is depotted, the rotten roots, diseased branches and leaves are cut off, re-select the pot with soil, the camellia planting, placed in astigmatism.

One auspicious difference, low temperature.

Reason: Camellia prefers warm climates and is poorly resistant to cold. If the temperature is low, or if it is suddenly hit by cold winds, the camellia will get frostbitten, and the tip of the camellia will turn black and then fall.

Solution: The climate in the north and south is different, and the measures to keep warm in winter are also different. The southern outdoor can be maintained, but it needs to be leeward and sunny.

In the north you can move indoors and put it in a well-lit place to feast on the state.

2. Watering too much.

Cause: High likelihood of overwatering. Camellias like to be moist and need the support of water, but if you water too much, water will accumulate in the pot, and the root system will always be in a state of hypoxia and unable to breathe normally, which will naturally cause the leaf tips to turn black.

Solution: Use breathable material for the pots, and wait for the soil to dry before supplying water. If you accidentally pour too much water, you should loosen the soil in time to promote the evaporation of water.

3. Poor ventilation.

Reason: During the maintenance of camellias, it is necessary to maintain air circulation. If it is not well ventilated, it will lead to poor growth and blackening of the leaf tips. Solution: Pay attention to maintaining good ventilation. When the temperature is high at noon, you can open the windows appropriately for ventilation.

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Answer, 1. Soil problem solution: In order to prevent soil salinization, it is necessary to replace the camellia with new potting soil regularly. Appropriate pouring of white vinegar with a concentration of 1/1000 to adjust the alkalinity of the soil.

2. Wrong solution to fertilization method: In this case, you can give the camellia a thin soybean cake water once a month. Sufficient nutrition**, the yellowing and drying of the leaves can be alleviated.

3. The solution to the wrong watering method: if the watering is too little, you can replenish the water in time, but the frequency of watering should not be too high. If you water too much, you need to do a good job of draining, you can leave some drainage holes at the bottom of the pot.

Fourth, pest control methods: dead branches and leaves should be cut off and destroyed. Spray chlorothalonil solution on the plant, generally once a week.

In addition, pay attention to the fertilizer of the camellia. The amount should be small, the concentration should be light, and the water should be properly controlled.