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利用某些蔬菜作物的抗病性,选育抗病品种是防治蔬菜病害的主要方法之一,且在有些种类蔬菜的育种中,有跃居首位的趋势。由于蔬菜专业化集约栽培,连续多年把特性相似的寄主植物种植在一起,加剧了蔬菜病害的蔓延。长期以来,由于防治蔬菜病害的化学农药品种单一,防治次数频繁,在防病的同时也筛选了抗药性更强的病原菌,使得一些药剂效果下降。另外,由于农药在蔬菜食用部分的残留和对
The use of certain vegetable crops for disease resistance and breeding of resistant varieties is one of the main ways to prevent and control vegetable diseases. In some species of vegetables, breeding has the highest tendency. Due to intensive cultivation of specialized vegetables, the planting of host plants with similar characteristics for many years has exacerbated the spread of vegetable diseases. For a long time, due to the single variety of chemical pesticides for preventing and curing vegetable diseases, the frequency of prevention and treatment is frequent, and the more resistant pathogens are also screened at the same time of preventing and controlling diseases, thus reducing the effectiveness of some medicaments. In addition, due to pesticide residues in the edible part of vegetables and right