Ecological control cucumber downy mildew
The downy mildew mainly invades the functional leaves of cucumber, spreads rapidly, and has a great harm to production. The vegetable farmer can control the occurrence of diseases by regulating the temperature and humidity. From 7 am to 1 pm, the temperature was raised in the closed room, so that the temperature in the greenhouse rose to 25°C to 30°C. When the temperature was higher than 33°C, the relative humidity dropped to about 75%. From 1pm to 6pm, large slits are opened to reduce the temperature and humidity. The temperature in the greenhouse is kept at 20°C-25°C, and the relative humidity is lower than 70%. It is not suitable for downy mildew. From 6pm to midnight, the relative humidity gradually increased to 80%, and the temperature gradually dropped to 15°C-20°C. From 0:00 am to 8:00 am, the relative humidity in the shed can reach more than 90%. However, due to the temperature dropping to 10°C-13°C, it is not suitable for infection by bacteria at this time. Using the above method can effectively block the bacteria infection. YT-T15 YT-T15 Shenzhen Sunshine Technology Co.,Ltd , https://www.szyatwin.com