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近年来,随着花生重茬面积的不断扩大,根结线虫病有不断蔓延和扩展趋势,给农民造成很大的经济损失。据笔者几年来的调查,发生根结线虫病一般减产25％～35％,严重的减产70％～100％。 一、加强检疫 据试验,荚果含水量低于8％～10％时,虫瘿内的线虫便失去侵染力。因此,检疫时可作荚果含水量的测定标准,但作为检疫对象,仍应注意不从病区调种或剥壳只调果仁。此外,花生根结线虫的寄主范围很广,对有关寄主种植材料也必须实行检疫,以保护无病区。
In recent years, with the continuous expansion of peanut stubble area, root knot nematodes have been spreading and expanding constantly, causing great economic losses to farmers. According to the author’s investigations over the past few years, the root knot nematode disease generally yields 25% to 35%, a serious reduction of 70% to 100%. First, to strengthen the quarantine According to the test, the pod moisture content of less than 8% to 10%, nematodes within the worm will lose the infectivity. Therefore, quarantine for pod moisture content of the determination of standards, but as a quarantine object, should still be careful not to tune from the ward or peel only adjust the kernel. In addition, the host range of peanut root-knot nematodes is very wide, quarantine must also be carried out on the host planting materials in order to protect the disease-free zone.