Traditional Culture Encyclopedia - Photography major - What happened to the twisted leaves of cymbidium?

What happened to the twisted leaves of cymbidium?

The twisted leaves of cymbidium sinense may be due to too high or too low temperature and lack of fertilizer.

At this time, dilute potassium permanganate should be used to spray calcium to plants, which is helpful for drought-resistant exercise, timely supplement water and fertilizer, and help it block out the sun.

I. Reasons

1, disease

If you have a viral disease, the symptoms are that it grows short, its leaves will curl, and in severe cases, it will not grow mesophyll. It is generally spread by aphids, especially in high temperature season.

2. Improper temperature

If it is too hot and there is little moisture, its pores will close and its leaves will become tubular and brittle. If the wind in the placement area is relatively strong and urgent, and the exchange of cold and warm air is strong, it will also become curly.

3. Lack of fertilizer

If it lacks phosphorus, its back will turn purple, brown spots will grow on it, the lower leaves will bend, the old leaves will turn yellow and the tip will wither. Generally, low temperature or strong acidity of soil will affect its absorption of this nutrient. If it is magnesium deficiency, the old leaves will fade and yellow spots will grow on them. In severe cases, the edges of the leaves will roll up and dead spots will appear on the leaves. In the cultivation process, amino acid foliar fertilizer can be sprayed.

Second, the method

1. If it is a disease, it can be diluted with potassium permanganate and sprayed to increase the required elements.

2. If it is too hot, you can exercise to fight drought during maintenance. After it bears fruit, add some water and fertilizer to it and shade it a little.

3. If it is a measurement problem, pay attention to the dosage of hormone when it is hot, and don't get it on new leaves.