The treatment of orchid diseases is a reference for orchids.

1. In a pot of orchid plants, the outermost leaf of a plant gradually yellowed from the leaf, from the tip, and tended to extend downwards, and the time could be extended for one month to two months or more, and finally the whole leaf yellowed and declined. this is a normal decline phenomenon of old seedlings, which is common in old seedlings after two years old.

The leaf tip is scorched yellow and has a slow downward trend, and it may be within a year before the decline of a leaf ends, which is normal, but if all the leaves on the seedling have a burning tip, the orchid root in the basin is damaged and should only be treated when the soil is changed in the right season. It is mainly caused by soil consolidation, poor air circulation and improper water supply.

two。 The outer bracts (protective leaves) of the seedlings, such as orchids with normal growth, can maintain the integrity of the whole plant. But the common outer bracts are either withered or shedding, forming abnormal light with long leaves (that is, leaves that grow once) to maintain growth. As long as you look at people with a little cultivation experience, you can tell at a glance that this is caused by poor cultivation management. generally speaking, bracts are incomplete, which reflects that the topsoil in the basin is too shallow or the basin soil is too thick, or that the basin soil water supply is at least too dry in the upper part of the basin soil. the root system related to leaf protection is damaged. The improvement of this problem can not be affected by the time and season, as long as it can be dealt with in time.

3. Due to physical injury, some leaves may also be damaged, and the consequences of injury are varied. Some of the veins of the leaves formed by excessive pressure are blocked, half of the leaves are damaged, and the compressed parts of the leaves gradually turn yellow; some cannot recover only because the tip of the leaf is broken, and the crease is too deep to restore growth; there is a piece torn from the middle, or damaged by excessive wind force for a long time, and so on. To these aspects, once discovered, carry on the local pruning, or change the position of the orchid basin.

4. Due to lack of common sense or carelessness, the orchid basin was placed under the laundry after washing and received a lot of dripping water. Within about 20 or 30 days, the whole orchid leaves became more and more yellow day by day, resulting in the death of all the orchid plants. Although this situation is rare, there is no lack of examples. As soon as this situation is discovered, it is necessary to immediately wash the orchid plant with a large amount of water, and if it is serious, the pot soil must be discarded and replanted; if it is found later, the leaves have been yellowed in large numbers, in addition to replanting with new soil, but also cut off the leaves with a deeper yellowing degree. and trim part of the roots, or choose soilless water moss to plant, pay attention to avoid shade for a period of time, slowly conditioning, serious cultivation.

5. Improper watering, whether it is spraying, irrigation, watering, soaking, or sprinkling, we should try our best to prevent water from entering the leaf and flower buds that have just opened. At this time, once you receive too much water, poor ventilation, or the temperature is too high and too low, it is most likely to cause rotting buds. If you do not pay attention, at first glance, the color of the upper part of the leaf bud has not changed. I only feel that the leaf bud has not grown tall for a long time. After taking a closer look, it is found that the color of the bud mouth and the lower half of the leaf bud has changed slightly, and it is common to be brown. At this time, as long as it is gently mentioned, the rotten leaf buds at the bottom have been pulled up.

6. Because there is too much base fertilizer (including organic fertilizer or chemical fertilizer) in the pot when planting orchid, it can be seen that the orchid plant is very exuberant in a short time, the leaves are oily green, and the new buds grow sharply. However, after the water is too dry, the whole orchid plant gradually turns yellow, so that the seedlings fall completely, or the deep-buried orchid seedlings in the orchid bushes cause blackening and decay from the center of the seedlings, and so on. Most of this situation is difficult to recover, which is called fat damage. If you find it early, change the soil again and take care of it slowly in a cool and ventilated place.

7. Because too many seedlings are planted in a year, which is called loose and easy to proliferate, the result is that it violates the characteristics of social habits of Orchidaceae plants, but it is difficult to grow new leaf buds and affect flowering in the coming year; regardless of seasonal factors in a year, turning the soil and changing pots many times will also be not conducive to normal growth and delay the incubation period, coupled with poor management, it will also wither and fall seedlings.

8. In the usual cultivation management, if a family has only one person to worry about, and other people generally do not ask, once this love orchid person is temporarily unable to take care of it because of a business trip or something, he has no choice but to leave the orchid plant to fate. As a result, it is inevitable to fall seedlings and die. The way to improve is not difficult, that is, there must be a replacement in the family, and there can be no downtime in the management link, otherwise it will be difficult to adhere to the love of the orchid.

The above situations show that there are many reasons for the inverted seedlings and necrosis of the orchid plant, as well as rodent and bird damage, but most of the factors endangering the normal growth of the orchid plant can be avoided, and the problem lies in careful observation in daily management. as soon as there is a problem, do not rush to rescue the orchid until the Miao inverted orchid dies, it should be known that it is harmful to be impatient and careless on the street of raising orchid. Kung fu must be spent in peacetime in order to prevent trouble before it happens. In my long-term practice, I have deeply realized that no matter what the reason, as long as the falling seedling of the orchid plant occurs, the trouble is obvious. It is not easy to restore vitality to the fallen bulb or the "false bulb" that is usually spoken verbally. not to mention the economic loss and emotional frustration, what is even more annoying is the waste of time, which is difficult to bear. From the inverted seedling and rotten root to take the bulb re-culture, to the bulb re-sprouting, growing root, and then to the seedling into a pot, and finally flowering, if all goes well, it will also take 2muri 5 years: rescuing some of the fallen seedlings can really restore their vitality, and it will also take 2 years. In short, it is the last thing that people who raise orchids want to see. But when things come to an end, fear and exasperation are useless. Only to face reality and treat it with a positive attitude can save the orchid plant from the brink of death. It is still the joy of success and harvest enjoyed by orchid farmers. It is worth every orchid lover to practice and appreciate the joys and sorrows in orchid cultivation. This is also a process of learning and exercise, and it is also an unavoidable reality for the vast majority of people who love orchid.