Tufa cures vegetable pests and diseases
The simplest method is the high temperature suffocating method, which can effectively prevent and cure various diseases such as greenhouse cucumber, melon downy mildew and tomato gray mold. The greenhouse was closed at noon on a sunny day, so that the temperature in the shed quickly rose to 46 ° C. After about 2 hours, it began to slowly cool down. This is the principle of killing pathogenic bacteria by using high temperature, and it can control the disease for 7 to 10 days. Pay attention to three points: First, the temperature can't be lower than 42 °C, and can't be higher than 48 °C; second, the first day before the shack is poured with small water, the second day is good for the high temperature shack; the third is to strengthen the fertilizer after the shack management.
The most amazing thing is the spray sugar method. Beans, lentils, peppers, tomatoes, etc. have got vegetable virus disease. When the virus disease occurs, you can spray sugar water. The ratio is 0.2% syrup + 0.2% zinc sulphate + 0.1% potassium dihydrogen phosphate, and the effect on pepper virus disease is 80. More than %, every 7 to 10 days, even spray 3 times, the effect can reach more than 70%.
The applicator method can control the pests and diseases of some stems and fruits. This method is used in the prevention and control of fruit tree diseases, and is particularly suitable for controlling greenhouse vegetable diseases, such as eggplant sclerotinia, tomato early blight, watermelon blight and the like.
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