Traditional Culture Encyclopedia - Weather forecast - How to care for orchids in hot weather?
How to care for orchids in hot weather?
Ventilation in high temperature and high humidity environment in summer is the key to prevent and control blue disease. Experiments have been done, and wild orchids can still survive in the outdoor sun at 45 degrees, but their leaves will be burned. But in a hot, stuffy and unventilated environment above 35 degrees, orchids will get sick in an hour or two. In particular, grass, greenhouse seedlings and weak seedlings returned to the field are more likely to get sick because of their low immunity. The author once had the experience that orchids raised on the balcony railing on the fifth floor of the office door were ill for two consecutive years. Moreover, they were all sick in a short day or two because they were afraid that Lan could not stand the high temperature exposure and moved to an unventilated corner. A pot of soft rot of Dagong Jianlan Yinbian, and a pot of stem rot of iron bone and silver needle. Disinfection was carried out immediately after discovery, and the new seedlings were separated and planted and preserved. This shows the true meaning of the old saying "orchid cultivation, surface ventilation first". It should be noted that ventilation not only refers to the air flow in the balcony or orchid room under the fan, but also needs to take into account the loose permeability of plant materials and the permeability of orchid pots. Moreover, it is not allowed to keep the plant materials in a high water content state for a long time, so as to reduce the oxygen content of the plant materials, otherwise it will lead to respiratory obstruction in the roots of orchids and cause diseases.
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