浦东新区王桥、龚路地区去年以来群众反映甜瓜有根病并疑为根结线虫(Meloidgyni spp.)。今春播种和移栽期曾应用杀菌剂敌克松和杀虫杀线剂呋喃丹颗粒剂处理土壤,但似乎毫无效果。为弄清情况,我们于5月20日到王桥的病点进行实地调查。经田间病株检查,确认该田发生的是典型的细菌性 Wangqiao and Pudong Roads in Pudong New Area Since last year, the masses have reported that Melon has a root cause and is suspected to be Meloidogyni spp. This spring seeding and transplanting period had applied the fungicide dithizone and insecticidal nevi agent carbofuran granules treatment of soil, but it seems to have no effect. To clarify the situation, we conducted a field survey on the diseased point of Wangqiao on May 20. After the field sick check, confirmed that the field is a typical bacterial