What is the reason for the yellowing of the leaves of the iron tree? How to repair the yellowing leaves of the iron tree

Speaking of cycads, I believe everyone is familiar with them, but many people always encounter the problem of yellowing leaves when growing cycads. So what is the matter with the yellowing leaves of cycads? How to repair the yellowing leaves of cycads? Let's take a look together.

What's the matter with the leaves of the iron tree turning yellow?

1. Iron deficiency can cause yellowing of leaves. You can spray ferrous sulfate according to the instructions to treat iron deficiency.

2. It is caused by excessive watering, and its characteristics are that the old leaves have no obvious changes and the young leaves turn yellow.

3. It is caused by lack of water and drought. Its characteristic is that the old leaves turn yellow first from the bottom to the top. If the water shortage lasts for a long time, the leaves of the whole plant will turn yellow, or even die.

4. It is caused by excessive fertilization or too high a concentration. The characteristics are that the young leaves are thick, shiny, and uneven.

5. It is caused by insufficient fertilizer, low fertilizer concentration, and long fertilization intervals. Its characteristics are that young leaves and tender stems turn yellow first. If fertilizer is not applied in time after this phenomenon, the whole plant will turn yellow or even die. For flowers that lack fertilizer, avoid applying a large amount of concentrated fertilizer at one time to avoid root burn.

6. For yellowing leaves caused by diseases, such as leaf blight, you can use carbendazim or thiophanate-methyl to spray the entire plant according to the instructions or the instructions of the boss to treat the disease.

How to remedy the yellowing of cycad leaves

Increase lighting

The cycad must be exposed to sufficient sunlight during its growth period, and then moved to a semi-shaded place after the leaves harden. If there is insufficient sunlight during the growth period, the leaves will turn yellow, so it should be moved to a sunny place for full-day sunlight, which can improve the yellowing of the leaves.

Watering Correctly

The cycad needs sufficient water during its growth period, but it should not be overwatered when watering, which will cause the roots to lack oxygen, leading to poor growth and yellowing of the leaves. So pay attention to watering thoroughly, but not waterlogging.

Proper fertilization

Cycads need fertilization. Long intervals between fertilizations will cause the leaves to turn yellow, so pay attention to the frequency of fertilization. Also, be careful not to use a large amount of concentrated fertilizer at one time, as this will cause root burn.

Pest Control

Pests and diseases are also one of the reasons why its leaves turn yellow, so after they turn yellow, we observe whether there are pests such as scale insects and red spiders. If there are, we should spray them with pesticides in time, so that the leaves can turn green again.

Medicinal effects of iron tree

The leaves of the cycad tree can regulate qi, relieve pain, reduce swelling, disperse blood stasis, stop bleeding, and fight cancer. The cycad tree can also treat intestinal diseases such as dysentery.