Collected by Lao Yan Lecture Hall (3)

Recently, I have received a lot of private letters from Lan You. most of the problems are symptoms of black spot or soft rot. The reason is that either the plant has poor air permeability, and the main reason is the problem of environmental ventilation. In fact, for the hot summer, if the environmental ventilation is not solved, the dead grass is an instant thing, must not be careless. Strengthen quarantine, pay special attention to orchid site quarantine, select disease-free seedlings to prevent disease transmission. Remove the diseased and withered leaves, cut off the disease spots in the upper middle of the leaves in time, and burn them centrally.

Next is Lanyou's question. I hope you have something to gain!

1. The orchids have changed pots. Why is it not long for a month?

One reason for the change of orchids is that the temperature is high during this period of time, the orchids are dormant and the growth rate is slow. Another reason is that the grass basin in the basin period takes at least half a month, and the growth rate of the basin is also very slow.

2. Is methyl topiramate used in pots or can only be sprayed with foliage?

This kind of medicine can be irrigated with foliar or foliar.

3. Where is the best place to grow orchids at home?

I raise orchids on the roof, and it is not easy to control the humidity. For example, making a water receptacle under the orchid rack, or laying a carpet that is easy to absorb water on the ground, or planting some green moss under the orchid rack, can be humidified.

4. How about liquid fertilizer for fertilization?

I generally do not advocate the use of liquid fertilizer, because liquid fertilizer is not easy to master, generally use slow-release granular fertilizer, directly on the basin, the amount is very easy to control, very simple.

5. Does it need sterilization to ferment orchids with Amoy rice water?

I do not recommend this, because do not complicate simple things, and it is troublesome to operate.

6. How to judge whether a bluegrass is good or not?

This question is rather abstract and difficult to judge. But we can judge by these conditions: first of all, look at the appearance of this orchid. The main purpose is to distinguish whether the orchid is plum petal, lotus petal, daffodil petal, strange flower or art.

Grass, we need to figure out these classifications. Secondly, it depends on the price of similar grasses in the market. It is also a way to judge by the market price. Finally, it is the quantity of the world. The less there is, the higher the price, and the scarcity of things is precious. And the outstanding grass must be expensive, of course it must be fine.

7. Orchids are either black tips or rotten leaves. What should we do in this situation?

Black tip is a kind of burning tip, probably because the plant material is watered too much, or the humidity of the orchid environment is not enough. This situation is still an environmental problem, one is to solve the ventilation conditions, and the other is to achieve the humidity of the environment required by orchids.

8. Can indoor orchids spray water on the leaves every day?

No, you can't do that one hundred percent. Especially in hot weather, it will die as soon as it is sprayed, and the immortal leaves will grow black spots. After spraying water, the leaves are very wet, at this time, if the ventilation is not good, the more likely to breed bacteria, the more likely to die grass.

9. Is there a good way to turn the pot and divide the seedlings when the weather is hot?

Do not divide seedlings when the weather is hot, it is not suitable for seedlings, because there will be wounds, when the weather is hot, the wound is more likely to breed bacteria, and the wound is difficult to heal under high temperature conditions. Therefore, do not move the basin or divide the seedlings until it is a last resort in summer. Even if it is a last resort, choose a lower temperature to divide the seedlings, such as at night.

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