What about the withered and yellow leaves of orchids? Beginners who master these two points will not be wrong.

Orchids are the easiest to feed and the most difficult to raise. Because it not only needs special care in florescence, but also can not be careless in the non-flowering period, otherwise the leaves are easy to appear scorched yellow, black spots and so on, which greatly affect the ornamental value. Especially during the rainy season, the leaves of orchids often turn yellow. Lanyou is also very worried about this. Today, the good farmer will teach you two methods.

There are two kinds of withered and yellow leaves of orchids, one of which is physiological. Most of the orchids come into the basin around March, and when its roots are not yet new and can not absorb nutrients in the soil, the growth of the plant mainly depends on the stored nutrient supply of the mother seedling. So the mother seedlings (especially the oldest seedlings) will gradually become withered and yellow during the plum rain.

The characteristic of physiological withered yellow leaves is that the yellow leaves start from the tip of the leaves, slowly down, and the speed is not fast; in addition, the withered yellow leaves slowly develop inward from the oldest seedlings and the outermost leaves. This kind of situation is what we often call retired grass.

The second is pathological, the hot and humid weather in the rainy season is most suitable for the growth of fungi and bacterial viruses. If the environment is not well ventilated and the mother seedling itself carries bacteria, it is easy to cause pathological withered and yellow leaves. This situation needs to be dealt with in a timely manner, otherwise it will spread in a short period of time.

The characteristics of the pathological withered yellow leaves are well distinguished. Its yellow leaves extend from the bottom up, from the petiole all the way up, often the petiole has rotted, but the upper part of the tip is still oil-green; and from the inside to the outside, the rot starts from the heart leaves of the orchid seedlings, sometimes the heart leaves are rotten, and the outermost leaves are still green. Therefore, this kind of withered and yellow leaves is very deceptive and should be dealt with in time once it is found.

The first kind of physiological withered and yellow leaves, so that the farmer falls down the pot of Cymbidium in the following picture, you can see that its orchid root grows very strong, and the bud head is also very good. It shows that it has gradually adapted to the environment after transplanting, we can ignore the withered and yellow leaves on this orchid, cut it off, and then enter the normal management.

In the picture below, the pathological orchid has also been poured out by the farmer, and its root is completely lifeless. There is little chance of saving such an orchid. You can refer to the previous article of the photographer (treatment of soft rot).

In fact, no matter what kind of rot, root rot, soft rot, stem rot, black rot, they all have a common feature, that is, the virus likes high temperature and high humidity environment. A good photographer has no professional knowledge. I think the best way to cure the virus is not to give what he likes, but to build what he doesn't like. So when good photographers encounter this kind of situation, they always control the water first (no rain or watering for more than a month at most), absolutely ban fertilizer, strengthen ventilation and dry sprinkle germicidal powder.

Netizens, do you have any other tricks? Welcome to share in the comments section.