The cause of yellowing of the leaves of Cymbidium and its solution

1. A brief description of the reasons

The cause and solution of the yellowing of Cymbidium leaves: first of all, we need to know why the leaves of Cymbidium are yellowed, and we can only find a way to solve the problem after knowing the cause. In fact, there are many possible reasons for the yellowing of orchid leaves. Then we need to find out the cause according to the yellowing of the leaves of Cymbidium.

One is that the leaves are narrow and the light is insufficient.

Second, the withered and yellow leaves are lack of water.

Third, the yellow and weak leaves are lack of fertilizer.

two。 "prescribe the right medicine to the case" according to the reason

Cymbidium leaves yellowing reasons and solutions: generally for Cymbidium leaves yellowing we summarized the following several, one case is from the leaf axil director bottom leaves out of new roots, so that leaves yellowing is a normal metabolism. One situation is that the leaves turn yellow without new roots in the axils, in many cases because the soil is relatively raw, the air permeability is relatively poor, too much fertilizer or watering dry humidity is not good to control the roots, which may make the leaves of Cymbidium yellow. When watering it, the lack of water supply and the lack of water at the root tip will make the leaf tip yellow and dry. In this case, you must water thoroughly. In summer, you can sit on a small basin of water at the bottom of the flowerpot every 7-10 days, so as to ensure that it can be watered thoroughly. This is called immersion.

The reason for the yellowing of the leaves of Cymbidium and its solution: another case is yellow spots of different sizes on both sides of the leaves, which we call brown spot disease. This is mainly due to the fact that the soil in which it is located is relatively healthy, but the amount of fertilizer application has not been well controlled, and the amount of fertilization is too large. Generally speaking, rotten leaf soil should be used in basin soil, and its air permeability is better, especially in summer, thin fertilizer should be applied frequently, and fertilizer and water should not be dropped on the leaves, so as to prevent the occurrence of spot disease. In another case, due to sufficient sunshine and high temperature in summer, if the magnolia is exposed to the sun, sunburn will occur. The light leaves turn yellow and the heavy ones wilt. Shading should be taken in summer, put in a ventilated place, the degree of shade should be 50%, and the south window of the family can be shaded with a layer of gauze.

3. Experts explain the reasons and plans

The cause and solution of yellowing of Cymbidium leaves: the yellowing of Cymbidium leaves is a common phenomenon in the cultivation of Cymbidium, which greatly affects its ornamental value.

The cause of the yellowing of the leaves of Cymbidium and its solution: if all the leaves turn yellow, it is caused by sunburn, especially if it is exposed to the sun for a long time in summer. In order to prevent this from happening, shade cultivation should be adopted and the leaves that have turned yellow can be cut off.

The cause of the yellowing of the leaves of Cymbidium and its solution: for example, the leaves turn yellow from the end of the leaves. That is because the soil is not suitable, the fertilizer is not mature, or the rotten roots caused by too much water and fertilizer, so the soil should be changed again and watering should be controlled to promote the production of new roots.

The cause and solution of yellowing of Cymbidium leaves: individual leaves and local leaves turn yellow, which may be caused by fire, cold wind, water scalding and acid erosion, which should be prevented and avoided. In cultivation, chlorophyll decreases, resulting in light green or yellowish leaves. It can be solved by topdressing.

The cause of the yellowing of the leaves of Cymbidium and its solution: the yellowing of the leaves is caused by the lack of light. The gentleman's orchid is afraid of strong light, but it can't grow completely in dark places, so pay attention to ensuring the necessary sunshine.