1, Qinggou drainage. In case of continuous rain, we should find ways to rule out the accumulation of stagnant water in the field, minimize the time of flooding vegetables, and remove the diseased leaves in time.
2, using rain cultivation. The rain-fence cultivation is to open the skirt film on both sides of the plastic greenhouse, and to retain the cultivation form of the greenhouse roof membrane. Avoiding rain cultivation can avoid direct scouring of rainstorms and water accumulation in the field to prevent excessive soil moisture, effectively reduce the occurrence of diseases, and ensure the high and stable production of vegetables. The conditions can be combined with the use of insect nets (that is, the use of omentum covering cultivation), and the insect pests are isolated around the greenhouse to insulate the gauze, so as to prevent insect pests from flying into the shed to lay eggs, so that no or little pesticide can be used. .
3, to strengthen the control of vegetable pests and diseases. Prevention and control of vegetable pests and diseases should implement the principle of “prevention-based, comprehensive prevention and controlâ€. Prevention and control of pests and diseases must not only be timely, but also rational use of drugs, only selected quasi-pharmaceuticals and medication period, concentration and methods, in order to achieve better control effect. Due to the high humidity in the rainy season, many diseases such as leafy soft rot, melon outbreaks, eggplant early blight, leaf mold, and gray mold are prone to occur.
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