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1 农业防治1 1 选用抗病虫良种。不同蔬菜品种 ,其抗病虫能力不同。选用什么品种是种植无公害蔬菜首先考虑的问题。各种蔬菜均有针对各种主要病害的抗性品种 ,但兼抗多种病害的品种不多 ,抗虫品种甚少 ,在引种时应严格检疫 ,避免和防止危险病虫杂草传播蔓延。通过杂交、嫁接
1 1 1 agricultural prevention and control of pest-resistant varieties. Different varieties of vegetables, their resistance to pests and diseases are different. What kind of variety is the first choice to consider planting vegetables pollution-free vegetables. All kinds of vegetables are resistant to a variety of major disease-resistant varieties, but also a small variety of resistance to a variety of diseases, insect-resistant varieties are few, should be strictly quarantine in the introduction, to avoid and prevent the spread of dangerous pests and weeds. By crossing, grafting