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大白菜病虫害种类多,发生普遍,对大白菜产量和品质影响极大。搞好大白菜播种期病虫害防治尤为重要。其防治技术如下:一、选用抗病品种选用抗病品种是防治大白菜病害经济有效的措施。可选用优质抗病的北京新3号、郑白4号、丰抗70等品种。一般青帮品种对大白菜霜霉病、软腐病、病
Chinese cabbage pests and diseases of many species, the prevalence of great impact on the yield and quality of Chinese cabbage. It is particularly important to do a good job in the prevention and control of pests and diseases of Chinese cabbage during sowing. The prevention and treatment techniques are as follows: First, the selection of disease-resistant varieties of disease-resistant varieties of cabbage disease prevention and control measures cost-effective measures. Optional high-quality disease-resistant Beijing New 3, Zheng Bai 4, Feng anti-70 and other varieties. General green varieties of cabbage downy mildew, soft rot disease