近年来,河北省中南部随着高产夏粟(谷)新品种的推广,夏谷面积迅速扩大,产量大幅度提高。由于新推广的夏谷良种(如:“青到老”等)易感线虫病,加之夏秋多雨有利于线虫滋生,致使粟线虫病的发生与危害逐年加重。在局部地区已造成毁灭性灾 In recent years, with the popularization of new varieties of high yield summer millet (valley) in central and southern Hebei Province, the area of ​​summer valleys has rapidly expanded, and the output has been greatly increased. Due to the newly introduced summer cereal (such as: “green to old” and so on) susceptible nematodes, coupled with summer and autumn rainy is conducive to the growth of nematodes, resulting in the occurrence of juvenile nematode disease and the harm has increased year by year. In some areas have caused devastating disaster