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大豆孢囊线虫病(Heterodera glycines Ichinohe)是大豆生产上一种严重的病害。我省安阳、新乡、郑州、开封、商丘,周口等地区发生普遍而且严重。据不完全统计,全省发病面发积达210万亩。近年来,随着大豆生产的发展,此病有逐年扩展的趋势.大豆整个生育期均可受其为害。幼苗受害生长迟缓,叶片由下向上变黄,检查根系可见到比小米粒还小的白色小颗粒,称为白孢囊(即前期雌成虫),成熟后变为褐色落入土中。病株分
Heterodera glycines Ichinohe is a serious disease in soybean production. Our province Anyang, Xinxiang, Zhengzhou, Kaifeng, Shangqiu, Zhoukou and other areas of widespread and serious. According to incomplete statistics, the incidence in the province reached 210 million mu. In recent years, with the development of soybean production, the disease has a tendency to expand year by year.Soybean can suffer the entire growth period. Seedling growth retardation, yellow leaves from the bottom up, check the root can be seen smaller than the small grains of white small particles, known as white cysts (ie, pre-adult female), mature into brown fall into the soil. Strain points