What to do if the leaves are yellow and curled, what happens to the yellow leaves in the middle? How

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.

You don't have to take it off, because it's dying, and other vigorous leaves can suck it up, and that's how it is cultivated in my family.

Velvet arrowroot, yellowish leaves curly edges

Like high temperature, high humidity, environment, temperature of about 25 degrees to grow well, need air humidity of more than 60%, air dry leaf edge yellow, avoid direct sunlight, winter room temperature not less than 15 degrees

Answer: Common causes and solutions of yellowing of plant leaves 1. 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 of the 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. Workaround:

Pay attention to watering when watering enough, water thoroughly. 2. 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. 3. Lack of light yellow:

If the leaves are shaded for a long time, the leaves will not get enough sunlight to form chlorophyll, and the whole leaves will turn yellow and then fall off. Solution: Timely supplemental light exposure can prevent the disease.

4. 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 leaf, the general leaf surface is thick and dull, and the concave and convex are not stretched, and the old leaves are scorched and yellow. Workaround:

Fertilization should be stopped immediately, and part of the fertilizer should be washed with plenty of washing in severe cases. 5. 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.

The reasons for the yellowing and curling of fruit tree leaves include lack of water, insect pests, potassium deficiency, calcium deficiency, molybdenum deficiency, etc.

1. Lack of water: There are many factors that cause fruit trees to roll leaves, especially in summer, when the weather is hot, and the plants are very slow to dismantle and may cause leaf rolling.

2. Pests: The most likely insect pests that cause curling of fruit trees are aphids, which mostly gather on the back of the leaves to suck sap, causing the curling and shrinking of the leaves.

3. Potassium deficiency: the edge of the leaf is scorched, gradually expanding from the lower part of the new shoot to the upper part, and the leaves of the old tree are scorched from mid-summer to the end of summer, sometimes the leaves are blue-green, and then the leaf edge and the main vein are parallel to the curl, fade green, and then burn.

4. Calcium deficiency: the tip of the apical young leaf is curled and hooked, and it becomes brownish-yellow scorched after a few days.

5. Molybdenum deficiency: the leaf veins lose green, or even turn yellow, easy to appear yellow or orange spots of different sizes, the leaves are slender and deformed, the leaf edge is curled upwards into a cup, and finally the mesophyll falls off and is mutilated.

There are many reasons for the yellowing and dryness of leaf tips, such as improper watering, improper fertilization, insufficient nutrients, improper temperature and humidity, improper maintenance location, etc.

1. Improper watering.

Although some plants prefer a moist soil and water environment, if the watering is not controlled, resulting in soil waterlogging, it will make the plant roots unable to breathe normally in the soil and absorb nutrients, so that the new leaves of the plant will turn yellow, and then cause the old leaves to wither.

2. Insufficient nutrients.

When cultivating plants, due to the lack of understanding of the characteristics of the plant itself and the properties of the soil, it will lead to the wrong application of fertilizer, so that the nitrogen in the soil where the plant lives will be lacking for a long time. When plants lack nitrogen, the branches will be weak and the leaves will be thin and yellow.

3. Improper temperature and humidity.

Some flowers suitable for growing in a warm environment are too low in winter, which causes the plants to be cold, making the leaves yellow, and even withering.

4. Improper location of maintenance.

If the environment is too dark, it will not only cause the plant to grow, but also cause the leaves to turn yellow, the leaves will fade, and the leaves will slowly turn from green to yellow-green.

5. Improper fertilization.

Potted spider plants indoors must avoid excessive and frequent fertilization, too much fertilizer will lead to fertilizer injury, and the first manifestation is the yellowing of the leaves. In this case, be sure to rinse the dust with plenty of water in time to wash away the fertilizer in the soil.

Solution:

You can prepare some pressure watering cans, and spray the mist water directly on the leaves and surrounding plants, but pay attention to the water of the leaves to evaporate before dark, and do not let the leaves often retain water, otherwise it will lead to infection with leaf spot or leaf rot.

When spraying mist water, try to spray mist water during the day when the weather is clear, and you can spray it several times a day when the weather is hot or relatively dry. Of course, there are some plants that must not be left with water frequently, especially for succulents or plants with fluffy leaves.

The yellowing of the leaves and the dry edges are due to long-term lack of water and low temperature.

1. Long-term water shortage

The Fortune Tree prefers to grow in a moist environment, and if the soil is dry for a long time, it will cause its leaves to turn yellow or dry up.

In addition to the lack of water in the soil, this can also happen if the air is too dry, and it is necessary to keep the substrate slightly moist and closed, especially in summer. After the winter, it is necessary to keep the state in a dry state to avoid the situation that the plants cannot absorb the root rot after too much watering.

Second, the temperature is too low

The hardiness of the Fortune Tree is not very strong, and if it is not moved indoors after winter, it is easy to suffer from frostbite and cause yellow leaves.

If you are exposed to low temperatures for a long time, you may die. Especially in the north of the maintenance of friends, after the winter, you need to pay attention to the cold, move indoors in time, and the temperature of the sail hand to collect evidence in the room is above 15 to spend the winter safely.

Precautions for growing plants

Plants' need for temperature depends on the seasons, and different plants are able to survive in different seasons. In an environment that is not a greenhouse, some plants need to be planted according to spring, summer, autumn and winter, and the temperature brought by the season will be different in different places.

Water is not only needed by the human body, but also by proper watering of plants. And when watering, you should pay attention to the water that should not be too much. Especially for potted plants, it is easy to cause the death of the plant if you water it too much.

The causes of yellowing and scorched leaves are: lack of sunlight, improper watering, and excessive fertilization.

1. Lack of sunlight.

The reason for the yellowing and withering of the leaves of the plant is the lack of sunlight, if the plant is placed in a shady place for maintenance, the leaves cannot carry out normal photosynthesis, so that chlorophyll and nutrients cannot be formed, resulting in the yellowing and wilting of the leaves of the plant, and finally withering and falling.

2. Improper watering.

In the process of maintaining plants, if you water too much, it is easy to cause anoxic rot of the root system, affect the transportation of water nutrients to the leaves, cause poor growth of leaves, and appear yellow and dry.

3. Excessive fertilization.

When fertilizing plants, if too much fertilizer or too much concentration, it will cause the leaves of the plant to turn yellow and dry, at this time the leaves are thick and dull, and the tips of the new leaves appear dry brown, in addition to long-term fertilization too little or no fertilization, it will also cause the leaves of the plant to turn yellow and dry.

Conservation and management of plants

1. Reasonable light.

The growth and development of plants is inseparable from sunlight, when potting plants, they need to be placed in a sunny environment, and at noon use a shade net to block the strong light, so that the seedlings receive soft sunlight, so as to avoid the phenomenon of wilting and wilting.

2. Watering an appropriate amount.

When cultivating potted plants, it should be watered by the hail bureau to keep the pot soil slightly moist, and it should be moved to the eaves or indoors in the rainy season, so as not to splash the rain into the pot and rot the root system of the plant.

3. Pay attention to pruning.

Pruning is very important when potting plants, removing yellow and dead leaves frequently to keep them in a healthy growth state, and when the plants grow too tall, they should complete topping to control the growth rate of the rhizomes.