What should I do if the leaves of the latest orchids turn yellow?

Orchid is one of the ten famous flowers in China. Since ancient times, it has been regarded as a symbol of purity and elegance. The history of orchid cultivation in China has been more than 2,000 years. Orchids, as one of the precious flowers, were deeply loved by many people. Many people valued the market profits and began to plant orchids on a large scale. However, many flower farmers appeared the phenomenon of yellowing orchid leaves when planting orchids, which seriously affected the varieties of orchids and reduced economic benefits. It was a headache. But you don't know how to fix it? Let's take a look at the detailed introduction.

1. Too much light

Orchids are like cool growth environment, for light growth is more harsh, and not suitable for long-term exposure to light, some flower farmers in planting, due to improper control, so that its long-term exposure to sunlight, so it is easy to lead to yellow leaves. Although it cannot be exposed to light for a long time, its growth cannot leave the light. If the light time is too short, the leaves will lose luster and gradually shrink.

Solution: For the yellowing phenomenon caused by light, the orchid can be moved to a cool place, such as a greenhouse, using the greenhouse to block the strong sunlight, pouring a little water, about a few days later, the leaves will slowly return to normal. If the leaves and begin to wither, do not cut them off for the sake of beauty, let them fall off on their own, so as not to infect the wound with bacteria.

2. Too much watering

Orchids like wet environment when growing, but if watered too much, it is easy to cause "drowning" phenomenon, then it will lead to yellow leaves. At this time, because of excessive watering, excessive water in the soil, and poor soil drainage, resulting in poor soil permeability, the root system will be due to lack of suffocation, preferably leading to rot, yellow leaves appear.

Solution: In planting to master the correct watering method, generally in the soil drought in watering, watering should not be too much, keep the soil dry not wet branches can, but also pay attention to the air humidity situation, if the air is too dry, can increase humidity by spraying water, if it is outdoor planting, pay attention to drainage after the rain Waterlogging prevention measures.

3. Improper fertilization

As with other crops, fertilizer is essential for orchids to grow fast and strong. Nitrogen fertilizer makes the leaves grow fast. However, orchids have root nodules and have certain nitrogen accumulation ability, so the application amount of nitrogen fertilizer should be controlled, while some flower farmers apply a large amount of nitrogen fertilizer in order to make them grow rapidly, resulting in too high nitrogen content in the soil, resulting in cost, resulting in yellow leaves.

Solution: When fertilizing, we should grasp the skills, apply thin fertilizer each time, remember to apply thick fertilizer, and do not apply decomposed liquid fertilizer. After fertilization, we should irrigate water once to dilute the fertilizer, so that the plants can absorb it better and prevent fertilizer damage.

4. Diseases and pests

When planting orchids, diseases and insect pests are often encountered. Many diseases and insect pests will harm the leaves of orchids, eventually leading to yellowing of leaves and death of orchids in serious cases. Diseases and pests are especially severe during the summer heat and humidity, and outbreaks often leave people helpless and see orchids destroyed.

Solution: In planting to strengthen the prevention and control of pests and diseases, found pests and diseases to deal with in a timely manner, according to the different symptoms of pests and diseases, determine which kind of pests and diseases harm, in the right medicine, do a good job of treatment measures, environmental yellow leaves.

The above is how to do the yellow orchid leaves to the Ministry of content, I hope to help you, want to know more about orchid cultivation knowledge, please pay attention to us.