Why are the leaves not green? Bulb orchid leaves have dark spots

The leaves of the bulb orchid are not green and yellow, which is mostly caused by three reasons. One is that the light is too strong, although it likes light, but it will be sunburned if exposed to strong light for a long time. It should be removed as soon as possible, especially in the summer.

The second is improper watering, large water or lack of water will yellow leaves, large water to reduce the amount of water, more ventilation and loosening the soil. If there is a shortage of water, you should replenish water as soon as possible to make the soil moister. The third is improper fertilization, the application of thick fertilizer or fertilizer will burn the roots and yellow leaves.

Water with water and let the fertilizer drain out.

It may be that the sun is shining too strongly. Too dry bath not enough humidity. Nutrients are not enough, orchids are suitable for astigmatism, do not directly put under the sun, put under the shade of the sunshine with starlight sunshine, humidity to be enough, air dry bath orchids should be sprayed or water on the foliar every day, regular foliar liquid fertilizer.

Is it yellow, or whitish, the leaves are not green, there are usually some situations, one is a lack of nitrogen elements, make up some nitrogen-containing foliar fertilizer, and there is a more serious soil compaction to add some organic fertilizer or nutrient soil, not too much, weight ratio and the soil in the pot, according to 2 to 8 to add it, and then look at the other diseases or pests? Is it possible?

What to do if the leaves of the orchid are spotted, the orchid is not resistant to direct exposure to the sun (produces dark spots), it can be moved to the astigmatism, and the fleshy leaves, who should also water less, and most of the softening is insufficient nutrition after flowering, and a few grains of compound fertilizer can be added in 2 weeks.

Hello! Please ask, my orchid has not bloomed and there are a lot of black spots, the seedlings have just grown, and I don't know what the reason is, thank you.

The reason for the yellowing of the bulb orchid largely depends on the place of cultivation, usually the planting of the bulb orchid to choose a suitable growth environment, the choice of flower pots needs to use sandy pots, it is best not to choose plastic pots or porcelain pots. The second is the height of mutual spraying, it is generally better to choose a higher pot, so that it can be more powerful and the root growth of the orchid, the quality of root development will affect the growth of branches and leaves, if the roots can not develop normally, it will lead to insufficient nutrient absorption, resulting in the phenomenon of yellow leaves. However, the pot should not be too large, too large will also affect the growth of the whole plant, according to the size of the plant to choose the appropriate size of the pot.

When cultivating bulbs, the application of fertilizer will also affect the growth of the plant, usually most people are willing to use their own soil quality to cultivate, and then use liquid fertilizer, and sometimes you can also put a small amount of fertilizer at the bottom of the pot as a base fertilizer. Fertilizer must be used, so that nutrients can be supplemented, but it is necessary to pay attention to the dosage and apply fertilizer appropriately according to the growth of the bulb.

Bulb orchid likes to grow in places with light and is a shade-loving plant, so we should avoid direct sunlight to avoid unnecessary damage to the leaves. If there is a yellowing of the leaves, it is possible that the time is not enough, so it should be placed in a sunny location for maintenance. In summer, it is necessary to reduce the light time of the bulb orchid and put it in a bright environment, so that the leaves will not turn yellow due to strong light.

1. Sunshade. Once Shouhe finds that the leaves of the orchid are sunburned, the orchid should be moved to the position where the sun does not shine directly as soon as possible, the sooner it is moved, the better, and if it is inconvenient to move, you can install sunshade facilities above, shade nets, cardboard, branches, bamboo curtains, etc., as long as the sun can block the things, but pay attention to the firm fixation, especially in windy places.

2. Hydration. In addition to moving to a shaded place for the first time when the orchid leaves are sunburned, it is also necessary to replenish water in time, so that the orchid plants can quickly recover the water from the flowing water, do not rush to water when moving from the strong light to the shade, and then replenish the water after the temperature in the pot is reduced, spray the leaves first, and then water the roots after 10-30 minutes, and water them repeatedly.

3. Intensive breeding. Sunburned orchids sometimes not only have problems with the leaves, but also have problems with the root system that can not be seen directly in the pot, mainly due to the high temperature of the pot, and some will also have stem rot.

Bulb orchids belong to tropical plants, and almost all tropical plants prefer a humid environment, and bulbs are no exception. In fact, the bulb orchid is already a relatively dry tolerant variety among tropical year-old Zen plants, and its leaf surface naturally has a waxy layer of finch, which can reduce water evaporation and preserve water for the plant. However, if the indoor air humidity is below 40% for a long time, the branches and leaves of the bulb orchid will still grow slowly because it is too dry, and flower lovers in the northern region should pay special attention to this problem in autumn and winter. Kai Chen.

Summary. The yellowing of the leaves of the bulb orchid should be solved symptomatically, and sufficient light should be provided if the light is not suitable to avoid strong light exposure; The potting soil is not breathable, and it should be replaced in time to make it breathable; Improper watering should be watered in an appropriate amount to prevent stagnant water and less water; Unreasonable fertilization should be thin, fertilizer should be applied frequently, and supplementary nutrients should be applied; The temperature of low temperature freezing damage should be controlled above 5; Pests and diseases should be well controlled to make them grow healthily.

The yellowing of the leaves of the bulb orchid should be solved symptomatically, and sufficient light should be provided if the light is not suitable to avoid strong light exposure; The potting soil is not breathable, and it should be replaced in time to make it breathable; Improper watering should be watered in an appropriate amount to prevent stagnant water and less water; Unreasonable fertilization should be thin, fertilizer should be applied frequently, and supplementary nutrients should be applied; The temperature of low temperature freezing damage should be controlled above 5; Pests and diseases should be well controlled to make them grow healthily.

Hope the above answers are helpful to you.

1. The temperature is not suitable.

Specific reasons: The growth of one-leaf orchid has its optimal temperature. If it is not in this range, it will grow slowly and will not grow new leaves. Solution: Make sure it fits, preferably at 10-25 degrees. It does not exceed 30 degrees in summer and 3 degrees in winter.

2. Lack of light.

Specific reason: The growth of new leaves requires proper light and old sails. If the place where it is located is too dark and does not see light for a long time, then its new leaves will not grow.

Solution: You don't need too much light, scattered light is enough. Usually you can put it indoors, and a slightly brighter place will do.

3. The soil is not suitable.

Specific reasons: If the soil is not changed for a long time, it will agglomerate, and the plant is not easy to breathe, which affects the growth of new leaves. Similarly, too little nutrition can also affect hailstones. Solution: Regular soil loosening and soil replacement is required.

4. The flower pot is too small.

Specific reasons: If the pot is too small at the beginning, or if it has not been repotted for a long time, the space for the plant to grow is too small, which may also lead to no new leaves. Solution: Start by choosing the right pot and replace it regularly.

5. No pruning.

Specific reasons: If Hu Hall is not pruned, the nutrients are consumed too quickly and new leaves cannot be supplied. Solution: Prune regularly and cut off dead branches and yellow leaves.