Causes of rotting Root of Cymbidium and its Control measures

Gentleman orchid

The main reason why many flower lovers choose to breed magnolia is that it not only has high ornamental value, but also has a life span of several decades. And during the breeding period, the most worthy of flower friends look forward to is the time of blooming once a year, of course, there are a small number of magnolia blossoms twice a year or more times, but relatively rare. But many flower friends will reflect such a problem, sometimes before the time to blossom, the gentleman orchid has rotten roots, so what is the reason leading to the rotting roots of gentleman orchids? How to solve this kind of problem?

First, the reason why the gentleman has rotten roots.

Cymbidium is a fleshy root. The root rot caused by environmental conditions and improper maintenance is mainly caused by the following three items:

1. The use of immature organic fertilizer or excessive fertilizer produces high temperature when fermenting in the basin and burns the root.

two。 Too much watering and poor soil permeability are just that the fleshy roots have been soaked in anoxic soil for a long time and gradually rot.

3. The improper proportion of cultivated soil results in poor consolidation and permeability of basin soil and makes the roots rot with stagnant water for a long time.

2. prevention and control measures of rotten roots of Cymbidium.

1. Improve the quality of nutritious soil

The permeability of the nutritious soil is not good; the soil is overripe or overgrown, and the tussah leaves used before preparing the nutritious soil cannot be overrotted or overgrown. If the nutritious soil is prepared with unmatured tussah leaves, heat will be generated after fermentation in the basin. However, the oak leaves are too rotten and a small amount of river sand is added, which makes the soil quickly become mud in the basin. Under the condition that the soil is sticky, the water content is not easy to evaporate, and the permeability is extremely poor, bacteria often enter from the wound. So when changing the basin, you should be careful not to hurt the leaves and roots. All the above factors will cause local discoloration and decay of the root system, and in serious cases, the whole root system will rot in a very short time.

two。 Adjust the amount of fertilizer and water the right amount.

The magnolia should not fertilize too much, otherwise it will generate heat and cause root system to burn and rot. Watering should also be appropriate, too much will make the nutrient soil water content is too large, poor permeability, root breathing difficulties, resulting in rotting roots. Be careful not to water the heart of the orchid.

Gentleman orchid

3. Propagation with bacteria in nutritious soil

High-temperature and humid environment to prevent bacterial reproduction, bacterial infection, in this environment, a large number of bacteria multiply, directly invade the root system and cause rotting root. Therefore, in the summer and autumn high temperature season, excessive fertilization and watering, it is easy to appear root rot. It is necessary to strengthen cooling and ventilation, control man-made mechanical injuries in high temperature season, spray drugs in time to prevent insect bites, and reduce the reproduction and spread of germs. Sometimes the pathogen overwinters in the soil with the disease residue, and the flower soil must be sterilized when changing the soil in spring.

The planting process of Cymbidium should be observed frequently, and if it is found that there is a rotten root phenomenon, it should be treated immediately. Take out the plant, remove the rotten root, rinse the root with 1% potassium permanganate water for disinfection, or apply some charcoal powder to the affected area and sun the root in the greenhouse for about 30 minutes. If the rotten root is more than 50% or all rotten, use the above method to treat and then use river sand to promote the root. The root-promoting temperature should be higher than the normal temperature, which is generally controlled at about 22-30 ℃, so that new roots will grow after about 2 months, and then transplanted to the nutrient soil basin.

The editor suggested: keep some soil at home, and the requirements of the soil should be disinfected and exposed to the sun, because the magnolia needs to change the soil once a year, and it is suggested that it should be changed in the warm spring and autumn season, and the rotten roots and dried roots should be cut off at the same time, otherwise it is difficult for the water to reach the roots. After changing the soil, pour the water thoroughly, the water can choose Rain Water or snow water, of course, if not, you can also use tap water, but tap water is recommended to be properly stored for a few days before watering the flowers. In short, usually as long as set aside a little time to take care of the gentleman orchid, the gentleman orchid will not have rotten roots.

What about the rotten roots of a gentleman's orchid? How to prevent and cure the rotting root disease of Cymbidium? Prevention and control of root rot disease of Cymbidium-root rot disease is also called root rot disease. Pathogen is a kind of soft rot bacteria (Erwinia sp.).

Morbidity regularity

The disease is caused by a variety of causes and can occur all the year round. Rotting roots can be caused by hot climate, excessive humidity, long-term non-drying of basin soil, excessive fertilization, root injury during soil change, excessive watering after long-term drought, and so on. In the early stage of the disease, water-like spots appeared in the heart leaf and the base of the heart leaf, and then spread down to the root, the disease was mushy, which could make the leaves fall off, and the plant died in severe cases.

Prevention and cure method

The main results are as follows: (1) to improve the cultivation management and the watering method, it should be poured from the edge of the basin to prevent it from pouring into the heart leaves. When it is found that rotten roots and diseased plants should be removed, all rotten roots should be removed, soaked in fungicides and dried, new mature nutritious soil should be replaced with 30%-50% gravel, and serious ones should be put in sand to induce new roots.

(2) for plants that have had root rot disease, timely measures should be taken by uprooting the diseased plant, removing the root soil, soaking it in 0.1% potassium permanganate solution and soaking for 5 minutes (the rotten part should be removed before soaking). Then rinse once with clean water, put the roots up in the sun for half an hour, and then dry in the shade for 4-5 days. The potted soil is disinfected by high temperature soil, and after the soil is completely cooled, the soil should not be buried too deep. Pour enough water to change seedlings in a cool place for 10-15 days to grow new leaves. According to the experience of Qingdao Garden Research Institute, this method has 100% effect.

In addition, pay attention to ventilation and cooling in the hot season, prevent the basin soil from getting too wet, stop fertilization in the hot season, reduce the fertilizer concentration, and avoid root injury when changing the soil. Can Cymbidium live without roots? what are the treatment methods and measures for the rotten roots of Orchid?

Speaking of gentleman orchid, I believe everyone will be no stranger, gentleman orchid has simple and elegant symbolic meaning, ornamental value is also very high, therefore, deeply loved by many flower friends. Many flower friends have a headache for its rotten roots in the process of breeding magnolia. Today, the editor will introduce the solution to it in detail.

The rotten root of the orchid is a problem often encountered by the majority of orchid friends, so can the orchid live without a root? As long as the root injury is not very serious, it can take root, and the majority of orchid friends are very concerned about how to make their own Ailan take root as soon as possible in a short period of time. This spring, due to the editor's careless soil change (the soil is not rotten), resulting in their own two gentleman orchids rotten roots, after some efforts, the two orchids are now back to normal, I will speak out some of my feelings in the process of rooting. Please correct me for what is wrong. In order to make the rootless orchid take root as soon as possible, we must pay attention to the following points:

1. It should be thoroughly disinfected (including the medium of orchid and rooting), and the prevention and treatment should continue to rot.

2. It is best to take root with plain soil or pine needles.

3. The temperature is suitable. The ambient temperature should be kept at 20-25 degrees.

4. Be careful not to water too much after planting. The potted soil is too wet, which is not conducive to rooting.

5. Put the flowerpot in the place of astigmatism to avoid direct sunlight.

6. Don't keep pulling it out. It's easy to get infected with bacteria.

7. Soak the false bulb with rooting agent. It is helpful for rootless orchid to take root.

8. Old leaves reveal new roots and grow points, which makes it easier to take root.

This is all I know about the magnolia today. I hope it will be helpful for you to read this article. If you want to know more about the magnolia, please continue to pay attention to the succulent flower bed, we will provide you with more related knowledge!