What if the leaves of orchids turn yellow and black? how do orchids pollinate?

Magnolia is a very noble and elegant plant, its flowers are very beautiful, with high ornamental value, it is definitely worth the trouble of raising a kind of plant. However, many people are probably afraid of the maintenance problems in the breeding process, because improper maintenance not only affects the beauty of the plant, but also seriously affects its growth and development.

What if the leaves of Cymbidium turn yellow and black?

1. The whole leaf turns yellow

Reason: the whole leaves turn yellow, which may be caused by strong light. Too strong sunlight will burn the leaves of Cymbidium, causing the leaves to turn yellow.

Measures: cut off the yellow leaves and shade the orchid, which can alleviate the yellowing of the leaves.

2. Local leaf yellow

Reason: the phenomenon of local leaf yellow is mostly caused by too much watering. It may also be due to incorrect fertilization, excessive concentration of fertilizer, causing root burning and local yellowing of the leaves of Cymbidium. And the soil is not ventilated, the root breathing and drainage is not good, or the maintenance environment is not ventilated enough and so on.

Measures: do a good job in water and fertilizer management, reasonable watering and fertilization, avoid basin soil too wet or thick fertilizer to burn roots, so that the leaves of Cymbidium are yellow. We should also pay attention to the regular ventilation to the orchid, so that it grows in a good ventilated environment, and pay attention to the choice of soil.

3. The leaves have macula.

Reason: it is mostly because the orchid has leaf spot or anthracnose, or is infested by insect pests. Let the leaves of Magnolia appear yellowish-brown disease spots, and even harm the whole leaves.

Measures: according to the incidence of the disease to choose the appropriate treatment, you can choose the appropriate pesticide spray treatment, and in the daily maintenance, do a good job of disease prevention measures, mainly prevention, prevention combined with prevention.

4. Other situations

Reason: the maintenance time of gentleman orchid is longer, that is the normal metabolic phenomenon. However, if the new leaves, tender leaves appear withered yellow, gray yellow, yellow weak phenomenon, it may be due to improper watering, too strong light or too much fertilization.

Measures: the leaf yellow caused by normal metabolism, do not need to worry too much, just cut off the old leaves of Cymbidium and keep it beautiful.

How to make the leaves of Cymbidium green and bright

I. varieties

We think that the standing of the plant is good, so we need the ingredients of short leaves, and the ingredients of round heads and technicians are also essential, but we know that there are not many pure short leaf technicians and round heads, so we still need short branches, short circles and so on to make the basic orchid. Only in this way can we grow well.

II. Maintenance

1. Watering

Watering is relatively easy. Whenever we wait until the surface of the basin soil is dry by one centimeter, we need to water it. Water should not be used easily. It is better to use precipitated tap water.

2. Fertilization

Fertilization is necessary, and the elements in it must be balanced. Most of the time, a plant we see is too wide and not green, largely because of improper fertilization. If we use charcoal to make potash fertilizer, we can use defatted bone particles to make phosphate fertilizer, so that it will not burn roots, and it will be more balanced, so that the plant will grow green.

3. Disease prevention

The main diseases of this plant are insects and fungi, we had better take prevention as the main method, add some reagents to prevent it every time, or use a brush to deal with it. In this way, its leaves will not be damaged, and it will grow green and bright.

When will the orchid blossom?

Its growth cycle is very long, so most of it takes four or five years to bloom, that is to say, it will blossom when it grows 20 to 25 leaves. If we cultivate it well, it can blossom once every two or three years, and it can also shorten the time to blossom in less than two years. Of course, basically, the plant can only blossom once a year, and if it is well raised, it may open one or two more arrows. Some people may not blossom until six or seven years in the process of raising it, or blossom only once and then never bloom again.

Its florescence is in the range from February to April, and there is its own way to prolong the flowering period. Lowering the temperature, ventilating it and reducing the light is the best way.

How to pollinate Cymbidium

1. Time

This kind of flower blossoms from winter to spring. If it blossoms early, it can start pollination in December, and if it blossoms later, it can start in April or May.

2. Artificial pollination

This kind of flower can be pollinated by worms, and if it had been kept indoors in winter or spring, there would have been no insects, so we could pollinate it artificially.

3. Parent selection

If self-pollination, the seed will be less, even if the knot is also difficult to emerge, the development will not be too good. We can choose different plants of the same variety, but it is best to choose different plants of different varieties, so that it will bear more fruit and its offspring will grow better.

4. Pollination steps

The trigeminal ones in the flowers are pistils, and the other ones with anthers are stamens, which can be dotted on the trigeminal column with stamen pollen. If the powder is precious, you can stick the pollen with a sewing needle. The best time to spot powder is when the stamens explode and the trigeminal column has mucus. The success rate of this operation at noon is higher, and the flowering in the first year is not very good, so it is easy to hurt the plant. if you want to store pollen, it can be refrigerated for a long time, and the temperature should be below five degrees Celsius.

In fact, it is not difficult to maintain a pot of magnolia, and most of the problems with plants are caused by watering. Watering is relatively easy for this kind of plant, and its roots have the function of storing water, so watering should not be too frequent to avoid rotting roots.