近年来,国内外对棉花枯萎病的发生为害与土壤线虫的关系的研究指出:线虫的侵害加剧了枯萎病菌的侵入和为害.因此,施用某些杀线虫剂可以明显减轻枯萎病的发生.1974年北京市农科所应用杀线虫药剂敌敌混剂处理枯萎病田土壤,由于线虫数量的减少,对枯萎病也有明显的防治效果.山东省农学院认为敌敌混剂对土壤病菌有铲除作用. In recent years, the domestic and foreign studies on the relationship between the occurrence of cotton fusarium wilt and the soil nematode have pointed out that the invasion of nematode aggravates the invasion and damage of Fusarium oxysporum, therefore, the application of some nematicide can obviously reduce the occurrence of wilt disease. Year Beijing Institute of Agronomy Nematode agents used to fight the hostile and enemy mixture of soil in the wilt disease field, due to the reduction of the number of nematodes, wilt disease also have significant control effect Shandong Agricultural College that enemy rival agents eradicate the role of soil bacteria .