二硫氰基甲烷对番茄苗安全性及其对根结线虫的防效  

Safety of Methylene Dithiocyanate to Tomato Seedlings and Its Control Efficacy against Root-knot Nematode

作　　者：祁之秋[1] 王建新[1] 陈长军[1] 纪明山[2] 周明国[1] 

机构地区：[1]南京农业大学植物保护学院,南京210095 [2]沈阳农业大学植物保护学院,沈阳110161

出　　处：《农药》2007年第7期489-490,493,共3页Agrochemicals

基　　金：国家"863"项目(2002AA244041;2004AA249040)

摘　　要：离体毒力测定表明,二硫氰基甲烷对根结线虫(Meloidogyne spp.)2龄幼虫EC50及EC95分别为0.720、1.663mg/L。温室试验表明76mg/L二硫氰基甲烷土壤处理,对间隔7、9d移栽的6周龄番茄苗安全。38、63mg/L药剂对番茄根结线虫的防治效果在30d和60d时分别达65.20%、86.94%和41.53%、46.15%;对土壤线虫的抑制在30d和50d时分别达58.57%、77.33%和38.22%、61.45%,各处理差异显著。The EC50 and EC95 values of methylene dithiocyanate against the second-stage juveniles of Meloidogyne spp. were 0.720 mg/L and 1.663 mg/L in vitro. The six-week-old tomato seedlings transplanted 7 d and 9 d after soil treatment were safe to methylene dithiocyanate at 76 mg/L. The control efficacies of methylene dithiocyanate at 76 mg/L and 63 mg/L against the root-knot nematode disease were 86.94% and 65.20% in one month, 41.53% and 46.15% in two months after treatment, resPectively. The inhibitions of methylene dithiocyanate at 38 mg/L and 63 mg/L against the population of the Meloidogyne spp. juveniles were 58.57% and 77.33% in 30 days, and 38.22% and 61.45% in 50 days after treatment, respectively. There were significantly different among treatments.

关 键 词：二硫氰基甲烷 番茄苗 安全性 根结线虫 防治效果 

分 类 号：S436.412[农业科学—农业昆虫与害虫防治]