How to do green radish leaves yellow, integrate 8 kinds of green radish leaves yellow analysis

The green pineapple leaves turn yellow, and the doors and windows of most flower friends' homes are closed, which will cause the indoor air to be unable to circulate, and the environment needed for the green pineapple to grow is well ventilated, so it will cause the green pineapple leaves to turn yellow. Leaf yellowing is the most common disease of green pineapple. Although the probability of leaf yellowing of green pineapple is much lower than that of ordinary green pineapple, it is difficult to avoid this problem completely because of the complexity of growing environment and different maintenance methods of green pineapple.

Analysis and solution of yellowing of green pineapple leaves

1. Watering

From the point of view of the winter temperature, the green pineapple usually stops growing at this time, so it is necessary to reduce the watering times and stop fertilizing at this time. If you water too much at this time, it will easily lead to the death of the green radish root system. The phenomenon is that the leaves turn yellow at the beginning.

Solution: after the beginning of winter, when the temperature drops, it is necessary to reduce the number of watering. If the leaves are already yellow, it depends on the degree of the leaves. If they are just beginning to turn yellow, stop watering the green pineapple and bask in the sun. If it is more serious, consider changing the basin.

2. Poor ventilation

In winter, because the weather is too cold, the doors and windows of most flower friends' homes are closed, which will lead to the lack of indoor air circulation, and the environment needed for green apple growth is well ventilated, so it will cause green apple leaves to turn yellow.

Solution: after the beginning of winter, you can choose to open the window for ventilation for a few hours on a sunny noon, which is good for both people and plants.

3. The air is too dry

Winter is already relatively dry, coupled with the cold, many flower friends will turn on air conditioning indoors, which will lead to drier indoor air. Too dry weather will lead to lack of water in green radish leaves and yellowing of leaves.

Solution: always spray water on the leaves of green pineapple to maintain humidity in the air.

4. The temperature is too low

Because green pineapple is a flower that cannot bear low temperature, if the temperature is too low and the water is sufficient in winter, it will cause the root of green pineapple to rot, so that the root system of green radish has insufficient water supply, which shows that the leaves on the root begin to turn yellow. and the leaves on the top of the green radish will lose luster.

Solution: at first, root rot spirit can be used to irrigate roots, if there is no effect, we should consider cutting propagation with branches without yellow leaves, so as to avoid extinction.

5. Be frozen

If the temperature is too low, the leaves of the green pineapple will turn black when it is frozen, and then the leaves will rot. Green pineapple will be frostbitten when it is below 10 ℃. First of all, move the green apple to a warm and ventilated place indoors, and then cut off all the leaves that have been blackened, yellowed and rotten. During the period of green apple's re-growth, it is enough to pay attention to watering. If the temperature is relatively low, watering should be dry and wet.

Solution: move back to indoor maintenance in time after winter and keep an eye on the weather forecast.

6. Poor ventilation

Poor ventilation is a problem that will be ignored by most people. coupled with the fact that green pineapple likes a humid environment, many flower friends will spray water on it. Now the temperature is low, evaporation is slow, and water stays on the leaves for a long time, which will cause rotten leaves! Therefore, usually pay attention to ventilation, in winter, the temperature is relatively high at noon to open the window ventilation, and do not put the green apple facing the window, in order to avoid frostbite.

7. Injury of leaves and bacterial infection

Generally speaking, inadvertently injured leaves will repair themselves in a few days, but if there are more germs in the environment, the germs will invade along the wound and then become infected, resulting in rotten leaves. In general, it is necessary to remove all the rotten leaves, then disinfect the whole pot of green pineapple and spray it with mixed carbendazim or chlorothalonil.

8. Diseases and insect pests

In addition to improper maintenance, diseases and insect pests are also one of the causes of rotten leaves. The common diseases and insect pests of green pineapple are anthracnose, leaf spot and so on. Anthrax occurs mainly in the middle of the leaves, with reddish-brown or dark-brown spots first, and then with the aggravation of the disease, the spots will gradually expand and appear with ring markings. Note that the same plant will be repeatedly infected.

If you are infected with anthrax, clean the leaves first and then spray them. You can choose carbendazim, topiramate or carbendazim to dilute the solution, once every 2 days, 3 or 4 times.

Key points of green pineapple conservation

1. The green pineapple bought in winter is generally frozen, so there will be a quick phenomenon of yellow leaves indoors, and so on. After these frozen leaves are finished, they will be reborn during the Spring Festival.

2. Generally, the newly bought green apple has an adaptation period of about one month to the new environment, and the yellow leaves at the bottom are normal, but remember: the yellow or dead leaves should not be peeled off directly, but should be cut off from the middle of the petiole, so as to avoid direct stripping, resulting in excessive water loss and increased wounds, resulting in the upper leaves will still be yellow.

3. Green turnips are not afraid of darkness, but very dark environments are not good! You can move the position regularly and adjust it to a place with good light, but you can't expose it to the sun!

4. Proper ventilation is also necessary to keep green pineapple well.

5. Watering can wet the pillar. It is full of gas and roots. Irregularly spray some nitrogen fertilizer on the leaves and pour some ferrous sulfate diluent into the soil.

6. If the leaves are very yellow! Must pay attention to control too much or too little watering is not good! Put the green apple in a well-ventilated and bright place at this time!

7. The green turnip is afraid that it will blacken until it dies after freezing.

8. When the green turnip grows very long, it should be cut off or turn its head upside down and ask it to climb down. don't let it grow at will!

9. Planting green pineapple in the soil is already a clich é. The soil requires rotten leaves with fertile, loose and good drainage performance, and the appropriate acidic soil has the best effect. In a room with dim light, some lights should be turned on. This will help plants grow.

Time: 2019-04-18 Click: