How to do morning glory leaves yellow, learn 6 strokes yellow worry-free/watering too low temperature

Morning glory, needless to say everyone knows, it is also called trumpet flower, often appears on the side of the road in the countryside, is a kind of flower loved by flower friends. Nowadays, many flower friends plant morning glory pots at home, but because of improper maintenance, there are often some problems, such as yellow leaves, then morning glory leaves yellow how to do? Here are several causes and solutions for the yellowing of morning glory leaves. If you love flowers, you must take a look at them.

First, morning glory leaves yellowing how to do, to find the cause

Before, in the breeding method of morning glory, we introduced its requirements on watering, fertilization and temperature. once the leaves are not up to standard, the leaves will appear. As for the morning glory leaves yellowing how to do, find out which point is wrong, and then solve the problem. Here are 6 causes and solutions for the yellowing of morning glory leaves. Move on.

Second, the causes and solutions of morning glory leaves yellowing.

1. Environmental change

When the leaves of morning glory turn yellow, the first thing to consider is environmental change. When many flower lovers first bought morning glory, the leaves were still very green, but soon the leaves turned yellow. In fact, this is a normal reaction, because after the morning glory is bought back, the sudden change in the growth environment will make it unable to adapt at all.

Solution: communicate with the seller when buying, ask him to explain the growth of morning glory, try to let morning glory grow in the same environment, or you can slowly change its environment so that it has an adaptive process.

2. Overwatering

Too much watering is also one of the reasons why the leaves of morning glory turn yellow. Too much watering: the water in the basin, the leaves can not absorb nutrients, after the damage, the young leaves become light yellow, and then the old leaves gradually turn yellow.

Solution: when watering too much: immediately control watering, stop fertilization, and often loosen the soil to make the soil well ventilated, or simply change the basin soil to make the morning glory refreshing again.

3. Apply too much fertilizer or how much

If you fertilize improperly, the leaves of morning glory will turn yellow. If the fertilization is too much, the new leaves of morning glory will be too thick, and the surface will be rugged, and the old leaves will fall off; too little fertilization will result in the lack of nitrogen and other nutrients in the basin soil, resulting in thin and yellow petunia branches and leaves.

Solution: when fertilizing too much: stop fertilizing immediately, increase the amount of water, make the fertilizer flow out from the drain hole, or immediately pour the basin, rinse the soil block with water and then plant it back into the basin; when fertilizing too little: pour the pot in time, replace the new fertile and loose culture soil, and gradually increase the application of compound flower fertilizer or dilute liquid fertilizer.

4. The temperature is too high or too low

The growth of morning glory is related to temperature. If the indoor temperature is too high, it will enhance the transpiration of the plant, resulting in a shortage of water and nutrients in the roots and yellowing leaves. If the temperature is too low in winter, the threat of cold injury will increase. Morning glory is easy to be affected by low temperature and the leaves will turn yellow, and the plant will wither and die seriously.

Solution: when the temperature is too high, it should be moved to a cool place with good ventilation for maintenance in time; when the temperature is too low, the room temperature should be adjusted timely according to the situation. Reference: morning glory is not resistant to cold, and the best growth temperature is 13-18 ℃.

5. Diseases and insect pests

When it comes to the yellowing of morning glory leaves, the damage of diseases and insect pests is definitely one. It will be affected by leaf spot disease, easy to lead to local leaf necrosis, not timely diagnosis and treatment and even the whole leaf withered and yellow shedding. In addition, the infection of aphids and other pests will make the leaves mottled with yellow and green.

Solution: when diseases and insect pests are found, pesticides such as topiramate or dimethoate should be sprayed in time for control. As for the more specific in the morning glory disease pest control has a detailed introduction, the editor here will not say more.

6. Spray too much medicine

As mentioned earlier, diseases and insect pests are treated by spraying. But if spray too much, easily lead to leaf tip or local leaf yellow scorch, serious will make the whole plant withered, morning glory leaves yellow symptoms naturally appear. Solution: pay attention to spraying, then clean the blade, and change the basin soil if necessary.

7. Lack of pruning

After buying morning glory, many flower lovers think that there is no need for pruning. In fact, this is wrong. Because the lack of pruning will lead to the lack of light needed for the normal internal chamber branches and leaves, and it is also easy to cause the leaves to yellowing and falling off. Solution: it is very simple, just trim it properly. Here you can take a look at the pruning method of morning glory.

The method of potted Petunia on Family balcony what if the leaves of Petunia turn yellow

Planting flowers on the balcony is something that most people like to do, especially for people living in cities. Raising green plants in families can beautify the family environment and improve air quality. Petunia not only has a beautiful appearance, but also has some value in other aspects.

The method of potted Petunia on Family balcony

1. Maintenance introduction

In the southern region, petunia can be planted in all seasons and only some seeds are needed, while in the north it is mainly sown in spring, which is more appropriate around June. Sowing is very simple, the basin soil had better be loose, well-drained sandy soil, after watering moist, the seeds are scattered evenly, do not cover the soil, because its seeds are too small, and then they should be kept moist and watered by soaking pots, and the seeds are easily washed away by flood. After that, it is necessary to give a warm environment (above 20 degrees), keep it moist, see the buds in a week, begin to see light slowly, and give thin fertilizer (nitrogen fertilizer) when it grows to 4 true leaves.

2. Late maintenance

Transplanting can wait for Petunia to grow 4 or 6 true leaves, and you can choose a basin of about 15 cm for maintenance, and the caliber should not be too large, otherwise watering will be difficult to control moisture, easy to accumulate water and rot roots, and cultivation will fail. Transplanting does not need complete shading, it prefers sunlight, give appropriate scattered light, slowly increase light, transplant temperature at about 20 degrees, not less than 15 degrees, be careful not to be frozen on the line. After the maintenance is relatively simple, watering is not dry, watering is the principle of thorough watering. If the thin fertilizer is applied frequently, the fertilizer with high nitrogen and potassium content and low phosphorus content can be selected as nitrogen fertilizer and urea as nitrogen fertilizer and nitrogen, phosphorus and potassium as compound fertilizer. Pick the heart once in summer to promote branching.

What if the leaves of Petunia turn yellow?

1. Soil and water

The soil and water suitable for the growth of petunia is mainly slightly acidic, on the contrary, in alkaline soil and water, there is a lack of soluble iron and other elements that can be absorbed and utilized by petunia, and the leaves will turn yellow if they are not absorbed for a long time. Therefore, we should pay attention to the selection of slightly acidic soil and water when planting, and often irrigate alum fertilizer and water during the growth period.

2. Humidity

The abnormal dryness of indoor air is also an important reason for the dryness of leaf tip or scorched leaf edge of petunia. At this time, water spraying, plastic film cover and other methods can be used to improve the humidity of indoor air.

3. Lighting

If the light is too weak, if the petunia grows in the shade without light for a long time, the branches and leaves will turn yellow, because the petunia itself likes yang and avoids yin. (too much light) of course, it is also wrong to put petunia in high temperature and be exposed to strong light, which can easily lead to scorched leaf tip and leaf edge, or leaf yellow shedding. At this point, it should be moved to a well-ventilated and cool place for protection.

4. Fertilization

Excessive fertilization will make the new leaves of Petunia too thick, and most of the surface will be uneven, and the old leaves will be dry-pointed and scorched yellow, so we must stop fertilization immediately and let the excess fertilizer be lost by increasing the amount of water exchange. or immediately use the inverted pot method, wash the bulb root and then replant it into the original pot.

If the petunia is short of nitrogen fertilizer or has not changed the basin and water for a long time, it will cause the lack of nitrogen and other nutrient elements in the water, resulting in thin and yellow leaves and branches. It is necessary to gradually apply dilute mature liquid fertilizer or compound flower fertilizer in the new culture water to make timely improvement.

5. Temperature

If the temperature is too low and the room temperature is too low in winter, the threat of cold injury will increase. Petunia is easy to be affected by low temperature and its leaves will turn yellow, and the plant will wither and die seriously. If the temperature is too high, if the indoor temperature is too high, it will enhance the transpiration of the plant, resulting in a shortage of water and nutrients in the roots, and it will also make the leaves yellow.

The habits of Petunia

Petunia belongs to long sunshine plants. Under the premise of plenty of sunshine, it takes more than 100 days from sowing to flowering.

Petunia is not cold-resistant and afraid of rain and waterlogging, and the most suitable temperature for growth is 13-18 ℃.

In winter, the most suitable temperature for growth of Petunia is 4-10 ℃, and it will stop growing when it is below 4 ℃.

In summer, petunia can withstand a high temperature of more than 35 ℃, and it needs plenty of water to grow vigorously.

During the rainy season, it is necessary to avoid excessive growth of stems and leaves caused by wet soil, or even death of rotting roots caused by long-term stagnant water.

Medicinal value of Petunia

The seeds of morning glory, also known as morning glory, black ugliness and white ugliness, can be used medicinally, with good efficacy in purging, diuresis, detumescence, deworming, and in the treatment of edema in chronic glomerulonephritis, facial acne and freckles have a good treatment effect.

The seed of petunia is a very good medicine, which can help the human body to treat some diseases and also have a cosmetic effect, in short, planting petunia can get a better return as long as it is maintained in a normal way, so interested friends can consider it!

Morning glory disease and insect pest control methods 1. Brown spot disease

Symptoms: when the disease occurs, round or polygonal spots appear on the leaves, usually dark gray in the middle and dark brown at the edges. The surface of the disease spot will produce a lot of light black mildew layer, in severe cases, the disease spot will be covered with the whole leaf, the leaf withered.

Prevention and treatment methods: it can be planted closely to avoid excessive watering and remove the diseased leaves in time; spray Guoguang must be fresh in time at the initial stage of the disease, once every 7-10 days and 2-3 times continuously.

two。 Cataplexy

Symptoms: morning glory is originally creeping, but lodging may also occur. At the time of the disease, the whole plant drooped and fell on the ground, and the leaves gradually yellowed and rotted.

Prevention and treatment methods: once the disease occurs, the diseased plants should be pulled out in time, and the soil should be irrigated with Purek, Shengshuangling, root disease cure and other medicaments. it can also be prevented and treated with chlorothalonil and methyl topiramate 800 / 1000 times.