What about the curl of the leaves of Cymbidium

1. Reason

1. Disease

If it has a leaf curl, it may be a viral disease, the symptom is that it grows short, the leaves will curl, and if it is serious, it will not grow mesophyll. It is usually spread by aphids, especially in high temperatures. If it is caused by hormones, its leaves will bend, the newly grown leaves will not stretch, the edges will be deformed, and the color will become lighter.

2. Improper temperature

If it is too hot and has less moisture, its stomata will be turned off and the leaves will become cylindrical and very brittle. If the wind in the placement area is relatively strong and urgent, and the cold and warm air is exchanged, and the change is very strong, it will also become curly.

3. Lack of fertilizer

If it is lack of P, the back of its leaves will turn purplish red, brown dots will grow on the top, the lower leaves will bend, the old leaves will turn yellow, and the tips will wither. In general, low temperature or too sour soil will affect its phosphorus absorption. If it is magnesium deficiency, the old leaves will fade, yellow spots will grow on the leaves, if serious, the edges of the leaves will roll up, and dead spots will appear on the leaves.

II. Measures

1. If it is a disease, it can be diluted with potassium permanganate and sprayed, and Mn, K and other elements can be added. If it is hormonal drug damage, you can use some Opal, pay attention to the use of hormones in hot days when the dose should be smaller, do not put it on the new leaves.

2. If it is too hot, you can help it to resist drought in the process of maintaining. after it sets fruit, it can add water and fertilizer at the right time to help it block out the light. If it is caused by the wind is too strong, you can slowly let out to exercise it.

3. If there is a lack of phosphorus, you can add phosphorus to the soil or leaves. For example, the dose of potassium dihydrogen phosphate is only 0.3%. If it is lack of magnesium, magnesium sulfate can be used to help it.