Oncidium leaves are yellowing. What's going on?

Oncidium is a kind of ornamental plant with high ornamental value, which is distributed all over our country and is welcomed by many people. Now Oncidium as a kind of potted plant, its market demand is also very large. However, in the cultivation of Oncidium, there are often many problems affecting the growth of Oncidium and reducing its ornamental value. And the yellowing of the leaves is one of them. So how do the leaves of Oncidium turn yellow? Let's take a look at it with the editor.

1. the light is too strong

Oncidium is a kind of plant that likes to grow in semi-shade environment, and its tolerance to strong light is relatively poor. Therefore, when planting, if the light is too strong, it is very disadvantageous to the growth of Oncidium. Its leaves may turn yellow because of sunburn, so we should pay attention to providing a good lighting environment for it. Put Oncidium in a well-ventilated and shady place for breeding. If a leaf has been severely sunburned, cut it off in time and wait for it to recover slowly.

2. Overwatering

Oncidium is actually a kind of wet plant, and its demand for water is still relatively large. But its waterlogging tolerance is relatively poor, in the breeding process, if the watering frequency is too high and lead to stagnant water in the soil, then it is easy to cause its roots to be retted. It affects the root growth and nutrient absorption of Oncidium, which makes Oncidium appear yellow leaf phenomenon. Therefore, we should pay attention to do a good job of ventilation and humidity reduction, and discharge excess stagnant water in time. If the phenomenon of yellow leaves has occurred because of too much watering, then it is necessary to stop watering in time and let it recover itself.

3. Insufficient fertilization

Oncidium needs certain nutrition in its growth, so we should also pay attention to fertilization. In breeding, if the soil is too barren, and Oncidium is in the growing period and is not fertilized in time, then Oncidium plants are very easy to yellowing leaves due to lack of nutrition. So when we are breeding, we should pay attention to do a good job of fertilization. Some low concentration compound fertilizer should be applied properly to provide sufficient growth nutrition, and it is best to replace some fertile soil to ensure the normal growth of Oncidium and reduce the yellowing of leaves.

The above is a brief introduction to the yellowing of Oncidium leaves. In fact, there are many reasons for the yellowing of Oncidium leaves, such as diseases and insect pests. Therefore, we must pay attention to do a good job in daily management, strengthen fertilizer and water work, and avoid adverse effects. That's all for today's introduction. This article is for reference only. I hope it can help you all.