There are six major causes of orchid seedling death, the fifth is the most dead seedling, and these diseases do great harm to orchid seedlings.

The orchid seedling appeared scorched tip, yellow leaf, yellow foot shell, rotten heart, rotten root, rotten Reed head, and finally the whole plant died, which caused huge economic losses to the orchid boutique investors. Orchid friends have different opinions, and the orchid is known only when it is difficult to raise. The author analyzes the main reasons:

Orchid pest

First, the fertilizer effect is too heavy. Orchid cultivation plant material should be thin rather than fertilizer, do not worry about insufficient fertility, and add too much plant material with heavy weight, it is found that the cultivated soil is too fat, it should be replaced or technical treatment in time. During the period of orchid management, if you rely on plant materials to grow normally, there is no need for additional fertilization. organic fertilizer is mainly used when fertilizing, and organic fertilizer must be rotten before it can be used. unrotten grass, bone powder, oil withered, etc. can not be directly used to fertilize orchids. Orchid special nutrients are usually also a kind of fertilizer, to prevent fertilizer damage caused by excessive application, the use of organic fertilizer or chemical fertilizer must not be too thick, thin fertilizer must be applied diligently.

The second is overdose. Any medicine has side effects, just like if a healthy person takes medicine every day, he will get sick if he is not sick. According to the different uses, the commonly used drugs in orchid management can be divided into fungicides, insecticides and hormone drugs. the frequent use of different drugs or excessive use may cause drug damage. Give priority to prevention, prevention, strong growth of orchids can not use medicine, there are diseases and insect pests really need to use appropriate amount of medicine. When the temperature rises and the humidity decreases, it is necessary to prevent the normal amount of medicine and fertilizer concentration from naturally increasing and injuring the seedlings.

Orchid pest

Third, the temperature is too high. Orchids need to grow in a suitable temperature and temperature difference environment, the suitable temperature for orchid growth is 15 to 30 degrees, and the suitable temperature difference between day and night is 5 to 15 degrees. When the basin soil temperature is higher than 35 degrees, the temperature difference between day and night is extremely small, or ultraviolet light irradiates for a long time, the plant ducts that transport nutrients for the growth of orchids are extremely vulnerable to mechanical damage, the propagation speed of viruses and bacteria in the environment is very fast, and orchids are easy to be infected with virus bacteria and lead to dead seedlings.

Fourth, the humidity is too high. The growing environment of orchids should be dry rather than wet, and should not be watered too frequently, or in the hot season of high temperature and humidity, so as to prevent waterlogging from injuring roots and rotting hearts and causing dead seedlings.

Fifth, the air permeability is not enough. Both the orchid basin and the orchid room need to be ventilated, and the cultivated plant material should be thick rather than fine, and the orchid room should not be depressed. We should pay attention to ventilation to prevent the oil fume from the kitchen and factory from entering the orchid room, harmful gases breed virus bacteria, and it is easy to infect orchids. Easy to appear large area of orchid dead seedlings.

Sixth, the score is too single. Orchids are clustered plants, like to live in groups, generally can not separate plants too frequently and single, too single weak seedlings, old seedlings or diseased seedlings, poor disease resistance. To introduce disease-free strong new seedlings, found that infected orchid seedlings should be timely disinfection, isolation management, wait for normal growth before they can be put into the orchid room. The ability of tissue culture seedlings and greenhouse seedlings to adapt to the natural environment is relatively weak, should be carefully taken care of, do not rush to success, pull seedlings to encourage.

Orchid pest

The above are the six major reasons for the death of orchid seedlings summarized by the author. It is not easy for orchid friends to raise orchids. Prevent these causes of orchid death in advance, improve a lot of deficiencies, and slowly form their own orchid raising experience, friends of orchids. Have you ever experienced orchid death? Which kind of dead seedlings do great harm? If you also like orchids, welcome to follow and forward, thank you for your comments and likes, thank you!