How does balsam pear prevent powdery mildew and virus disease?

Powdery mildew virus disease balsam pear how to prevent powdery mildew and virus disease? Please introduce the prevention and control methods of balsam pear powdery mildew and virus diseases can refer to the following methods: first, powdery mildew: it is easy to get this disease during flowering and fruiting, the leaves are first covered with white powdery matter, which gradually makes the leaves lose green and yellowing, resulting in premature senescence of plants and deformities of young melons, which significantly reduce the quality and yield. When the white powder has just appeared, the following three agents can be used for prevention and control. 1. 1500 times of clotrimazole aqueous solution. 2. The aqueous solution of trimethoprim is 1000 times. 3. The aqueous solution of sulfur suspension is 600 times. The occurrence of powdery mildew can be suppressed by spraying once every 10 days for two to three times. Second, virus disease: this disease specifically harms seedlings and plants that have just blossomed and bear fruit, first shrinking the growth point, then curling the leaves, and finally making the plants grow smaller and smaller, resulting in withering and death. therefore, when the leaves are just curled, spraying one of the following three pesticides can: 1, plant virus vaccine aqueous solution 600 times; 2, plant auxin aqueous solution 600 times; 3, virus an aqueous solution 800 times Spraying every 10 days, two to three times in a row, can prevent the occurrence of viral diseases. Click to get more balsam pear planting techniques click to get more vegetable planting techniques