What about the rotten roots of orchids?

The rotten roots of orchids indicate that there are problems with orchid management. as long as the environment, planting, watering, fertilization, spraying, etc., can not meet the needs of orchids, they begin to wither at the tips of new bud leaves or produce black spots on their leaves, indicating that the orchids have begun to get sick and rot their roots. if the cause is not found and improved, the orchid will rot and die.

First, the environment is unfavorable:

1. Insufficient sunshine: orchids have different hours of sunshine due to different types, but it takes at least 4 hours. If the sunshine is insufficient, the light is dim, the photosynthesis is not good, the material in the basin is not easy to dry, and if it is watered too frequently, it is easy to rot the roots. (to change the orchid environment or fill the light with plant lamps)

2. Muggy: if the environment is not ventilated, it will produce muggy heat, and the temperature will increase all the time in summer. Its effect is like putting the orchid into a pot and boiling slowly. The orchid will rot because of steaming. The black net around the orchid house should not be surrounded by a black net. It is necessary to leave some space so that the hot air can evaporate up, or install an exhaust fan to vent the hot air.)

3, not ventilated or too ventilated: (1) in addition to stifling heat, orchids are not easy to dry at night. If the material is too fine, it is also easy to rot because of stagnant water, and the roots will be black, indicating that they are too wet. To use a basin with holes, the material should not be too fine.) (2) if the wind is too strong, coupled with a basin with holes, the wind will quickly dry the water in the basin. If the water is not replenished frequently, the roots of the orchids will be dried, white and hollow, and the orchids will die. To use a basin without holes, use a material with strong water absorption.)

4. Insufficient humidity: the most difficult thing to overcome in raising orchids on the balcony is the lack of humidity. The roots of orchids need stable temperature and humidity. If it is too hot or too cold, too dry or too wet, it is easy to cause rotten roots of orchids, so improve the environment and maintain the temperature and humidity suitable for orchids. If the orchid grows normally, the root of the orchid is white and the root tip is normal, then the environment is suitable for orchid growth. If the orchid has been rotting, the growth is not good. Most of them are caused by the dry environment, especially the lack of humidity in summer, so as long as the humidity required by the roots can be increased to restore the normal growth of orchids.

Second, the planting method is not suitable for the environment

Different environments should be planted with different materials, taking into account various environmental factors, such as temperature, humidity, sunshine, ventilation, exposure to rain, availability of humidifiers, etc., if there is a link that is not well considered, so that the orchid can not adapt to the environment, it will die. For example, if I raise orchids on the roof of the second floor, orchids will get caught in the rain, use pots with holes, and plant gold stones with traditional large, medium and small (bottom-up). As a result, the orchid was either rotten or dead. Later, it was found that the problem was in the plum rain season. In the rain of the next month, because the upper part of the basin was a small stone plant, it would form stagnant water to soak the false bulbs and orchid roots, while the basin with holes, high temperature and windy in summer, would soon dry the water in the basin, so the orchid was either too wet and rotten, or too dry and died. Later, the planting method and the use of hole-free pots were changed before the orchids returned to normal growth.

Third, the watering time and method are wrong.

The watering time and method are different with the humidity and dryness of the environment, the different methods of pots and materials, and the change of the temperature of the four seasons, and the purpose is to make the material in the basin not too dry or too wet, resulting in rotting roots. For example, I planted orchids with large grains of gold stone and watered them in the summer night. I found that the orchids stopped growing and the new buds like bamboo shoots could not grow. This is a phenomenon of lack of water. The large grains of gold plants are well drained, and the roots are not easy to rot in the basin than the wind, but the water retention is poor. After that, the orchids were watered in the early morning to return to normal growth. And the basin with a finer material, such as watering in the early morning, because of strong water retention, the sun came out, poor ventilation and high temperature and high humidity in the basin, which will also lead to rotten roots and affect the growth of orchids, so it is best to water at night in summer. The excess water will drip the light the next day, and the basin will not be too wet. Therefore, watering should always observe the growth of orchids. If the growth condition is not good, it is necessary to change the watering time and method. If there is still no way to solve the problem, what is the problem? In order to prescribe the right medicine to the case; in addition, the temperature is too low (below 10 degrees) or too high (above 30 degrees), otherwise the orchids will rot because of frostbite or evaporation.

IV. Improper fertilization

Orchids are air roots, can not absorb high concentration of fertilizer, orchid roots naturally rot after injury, so it is necessary to apply thin fertilizer; in addition, the use of fermented organic fertilizer and solid long-acting chemical fertilizer (preferably on the edge of the basin), too close to the roots will also lead to rotting roots.

5. Lanzhu is ill.

Orchid injured insects, bacteria, disease only infection will also get sick rotten root death, if found symptoms, but also to spray to prevent and cure.