海南岛香蕉根结线虫病原的鉴定与防治

Identification of Banana Root-Knot Nematodes (Meloidogyne spp.) in Hainan Island and Its Control

对从海南岛各香蕉产区采集的香蕉根结线虫样本进行鉴定及防治试验,结果表明:均为南方根结线虫[Meloidogyne incognita(Koforid and White,1919)Chitwood,1949]。在巴西、泰蕉、8818、龙选、红蕉和粉蕉6个香蕉品种中,巴西品种最感病,粉蕉最抗病。质量分数3%米乐尔(0.5g/株)、质量分数1.8%爱福丁(1.25×10-2mL/株)防治香蕉根结线虫效果在90%以上,可有效地防治控制香蕉苗期根结线虫的危害。

The species of banana root-knot nematode [Meloidogyne incognita(Koforid and White,1919)Chitwood,1949] was identified in Hainan Island.Among 6 varieties of banana,Baxi was the one most susceptible to M.incognita,while Penjiao was the most resistant one 3 % carbosulfan and 1.8 % abamectim showed good control effect which was above 90 %.