How to disinfect potted orchid substrate? Orchid cultivation and disinfection methods

Disinfection method of granular planting material:

The planting material of orchid is the breeding ground of orchid pathogenic bacteria, such as white silk disease and brown rot, which are caused by the infection of pathogenic bacteria in the planting material. Therefore, planting material disinfection is a very important part of raising orchids.

In fact, if the granular planting material is used for a long time, it will also produce germs and harm orchid plants. Many flower friends use granular planting materials, and in such an excellent environment as a closed balcony, it stands to reason that the conditions are no better, but there is still brown rot. The reason for this is that the replaced planting material is not sterilized and reused.

Planting material disinfection generally includes steam disinfection, sunlight disinfection, and drug disinfection. Steam disinfection is effective, but it is more troublesome and often not used because of the trouble; Sunlight and drug disinfection are more convenient, but not thorough, and pathogenic bacteria will inevitably survive.

The steam disinfection method with sunlight as heat energy is used to facilitate and rely on the specific operation method as follows: the granular planting material replaced by the pot is packed in a large plastic bag, and it can be disinfected when the summer is hot. Spray water into the plastic bag to moisten the planting material, put it into the bag, and expose it to the concrete floor under the sun.

The water in the bag evaporates into water vapor when heated, the temperature is very high, and all the germs in the planting material can be killed by drying for two or three hours.

If the planting material is not disinfected or disinfected thoroughly, it will bring a lot of trouble to the orchid, and even because the soil contains disease-causing fungi, bacteria and viruses, the orchids planted will be wiped out. There are many ways to disinfect planting materials, such as sun exposure, steaming, spraying drugs, etc., which are more troublesome or incomplete disinfection. Today I will introduce a better disinfection method, which is sterilized in a microwave oven, which is easy to operate and has a good effect.

Put the planting material in a microwave-safe bag (double-layered). The pouch is open and placed in the microwave oven on high heat for 6-8 minutes. After taking out, the planting material is poured out of the bag, spread out to dissipate the heat, and can be potted after cooling, some flower friends use this method to disinfect the orchid planting material, and the roots of the orchid grass are growing very well, there is no bacterial infection, and there is no weed germination.

It should be said that this method of disinfection of planting materials. Ideal for family orchid farming.

Put the planting material in a pot and cook it, or put it in a plastic bag, and heat it in the microwave for 5 minutes to kill germs and insect eggs at high temperature. However, this method is more troublesome and is more suitable for disinfection in the case of a small amount of planting material. Put the planting material in a large plastic bucket, water it thoroughly with a 500 times solution of potassium permanganate, then cover it, and rinse it with clean water two days later, and then you can use it to grow orchids.

This method is also relatively simple and easy to operate.

Friends with conditions can buy a special plant disinfection spray, sprinkle evenly in the soil, no and it doesn't matter, dig out the soil, put it in the sun to dry it.

How to disinfect and sterilize orchid planting materials.

1. First of all, clean the orchid attack flowers, dry them for a day, and then spray them once with 1:1500 chlorothalonil (or other fungicides in Pai Shan Mountain), with a dosage of about 150-200 grams per pot.

2. After sterilization for 6 hours, you can drench your head through the hidden water, hang it upside down to dry the surface water, dry it until the roots are chalky white and soft, and transplant it in a pot, and water it thoroughly the next day.

I have shared with you before that in order to prevent some diseases in summer, it is easy to develop root rot in our root system, because there are many germs and fungi in this plant material, so how should we deal with it? To everyone, it looks like a very large mushroom. Like this mushroom, it is necessary to clear the land and mountains in time.

The next step is to disinfect the plant material, which is not clean. We should use some fungicides to effectively kill fungi and germs in the soil, so that the soil can be cleaned and the plants can grow better. This fungicide is designed for use in the soil to prevent root rot and blight.

We only need to prepare 1000ml of water, add 10 drops, and stir directly. Like this mushroom phenomenon, you must insist on watering every 5-7 days, so as to effectively kill the bacteria in the potting soil, make the plant material cleaner, and Duan Xixian makes this orchid grow better. Then the leaf surface is sterilized at the same time, and this dry black phenomenon appears at the tip of the leaf.

We cut it off first and then spray some fungicide like this, which is very serious. Let's pour a little. If cut off completely, spray some fungicide on it.

The most commonly used fungicide is this benzopyrazole ester, which is also of the systemic type. We only need to spray once every 7-10 days to effectively penetrate some pathogenic bacteria in the plant and kill them, thus preventing the spread of some diseases.

Orchids must be disinfected in summer, so when we disinfect orchids in summer, many flower friends will make these mistakes, resulting in poor disinfection effect, and even the growth of your orchid will be affected by the death of cherry blossoms. So, what are the misunderstandings of our orchid cultivation in summer? I'm going to share it with you today.

1.The first is that the concentration is too high. Many flower lovers may think that the higher the concentration, the better the sterilization effect, but in fact, they are wrong.

Then, if the concentration is too high, it is easy to cause drug damage. We'd better use it as instructed. 2.

Second spraying cycle. Some flower lovers spray too often or too lazily and may only use it once every few months. It's actually not right.

If we disinfect orchids, generally speaking, if they are grown outdoors, it is recommended to use them once every half a month, that is, once a month. If we can't be too diligent or too lazy, then this is the second. 3.

The third choice of drugs, when we use drugs, do not use only one drug, that is, carbendazim alone, because we use this kind of bactericidal drugs about two or three times. When we use these fungicides, it is best to use carbendazim mancozeb or chlorothalonil methyl tobuzin. We prepare several of these drugs and then use them alternately so that resistance does not develop easily.

4.The last point of leaf spraying is that many flower friends directly use root irrigation when disinfection. It is not recommended to irrigate the roots, as it will kill the rhizome in the potting soil, because the rhizome is especially beneficial for orchid growth.

If killing too many root bacteria is detrimental to the root growth of the orchid, it is best to spray the leaves at the time of disinfection. If it's for the front of your whole leaves and the surface of the potting soil, we can either omit the spray or spray it a little bit and let the potion drip directly into the potting soil. Then around the potting soil, there is you spraying, this part should be sprayed like this, so that it can effectively kill these germs.

5.In summary, these are the four mistakes that many flower lovers often make when disinfecting orchids. The effect will be better if the orchid is avoided in time.

Also pay attention to enhance the resistance of orchids, if you enhance their resistance, you can use phosphorus and potassium fertilizers in potassium dihydrogen phosphate, which can strengthen the resistance of plants.

1. The orchid basin is soaked with clean water and detoxified, which can be disinfected with disinfectant water or by heating.

2. Prepare planting materials and other supplies. If you use fairy soil and planting stone as planting materials, you should soak the planting materials in water a week in advance. For example, orchid mud is used as planting material, which is dried under the scorching sun to kill insects and disinfect.

3. Disinfect orchid plants. Soak the pruned orchid plants in a solution of 1:1000 of tobuzin and potassium dihydrogen phosphate for an hour, and then cool until the roots are soft. Ode to the Hall.

Suggestion: Healthy plants are not sterilized, but they can also grow very well, disinfection will harm the bluegrass, which is not conducive to growth, but if there is a wound, the wound should be dried in the pot.

We have been using orchid planting materials for a long time, and there will definitely be a lot of germs in the potting soil, and we can't use this carbendazim to breed germs. This fungicide irrigates its roots because it is symbiotic with the orchid. If we use fungicides, it will also kill the root bacteria in the potting soil, which is not good for the growth of orchid plants, but we can't repot the orchid frequently, which will cause the orchid to be in the pot period and unable to return to normal growth.

So what do we do to dismantle envy? In fact, sprinkle a little of this compound microbial fertilizer. The reason why this compound microbial fertilizer is sprinkled is because it contains this bacillus subtilis.

What is that bacillus used for? It produces a lot of active substances. These active substances have a very obvious inhibitory effect on pathogenic bacteria, that is, they can inhibit the reproduction of these pathogenic bacteria in the potting soil, reduce the reproduction of this pathogenic bacteria in the potting soil, and effectively promote the growth of some beneficial bacteria.

For example, some orchids or other bacteria that are conducive to the growth of orchids can also enhance the resistance of plants, promote their rapid growth, and have a certain rooting effect. It is also rich in organic matter, which can improve the soil and clear the soil, and the proportion of nitrogen, phosphorus and potassium is also relatively low, so you don't have to worry about hurting the roots. We can bury it in the potting soil or spread it directly on the surface of the potting soil.

We can only use it once in two or three months. Spreading on the surface of the potting soil like this, without filling fungicides or changing the potting soil frequently, is also conducive to the growth of this orchid root.

Treatment of orchids before planting.

Soak the whole plant with sterilization and disinfection drugs for 1-2 hours, hang upside down to dry the surface moisture, dry the roots until the roots are chalky white and soft, and transplant them in pots, and water them thoroughly the next day.