title: Transportation behaviour of fluopicolide and its control effect against Phytophthora capsici in greenhouse tomatoes after soil application.
abstract: BACKGROUND
  Fluopicolide, a novel benzamide fungicide, was registered for control of oomycete pathogens, including Phytophthora capsici. In this study, fluopicolide (5% SC) was applied in soil at rates of 1.5, 3 and 6 L ha(-1) [the normal (ND), double (DD) and quadruple dosages (QD) respectively] to investigate its transportation behaviour and control efficiency on tomato blight as a soil treatment agent.
  
  
  RESULTS
  The results showed that fluopicolide applied to soil could be absorbed by tomato roots and then transplanted to stems and leaves. It could exist in tomato roots for more than 30 days, and in leaves and stems until day 20 after application. The decline in fluopicolide in soil was in accordance with a first-order dynamics equation, with half-lives of 5.33, 4.75 and 5.42 days for the ND, DD and QD treatments respectively. The control efficiencies of fluopicolide were better with soil application than with spraying application, and the inhibition ratios were 93.02, 97.67 and 100 on day 21 for the ND, DD and QD treatments respectively.
  
  
  CONCLUSIONS
  Soil application of fluopicolide could control P. capsici in greenhouse tomatoes with high efficiency and long persistence.
authors.affiliation: Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, China.
authors.forename: Lili
authors.initials: L
authors.lastname: Jiang
authors.affiliation: Cotton Research Centre, Shandong Academy of Agricultural Sciences, Ji'nan, Shandong, China.
authors.forename: Hongyan
authors.initials: H
authors.lastname: Wang
authors.affiliation: Shandong United Pesticide Industry Co. Ltd, Ji'nan, Shandong, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Xu
authors.affiliation: Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, China.
authors.forename: Kang
authors.initials: K
authors.lastname: Qiao
authors.affiliation: Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, China.
authors.forename: Xiaoming
authors.initials: X
authors.lastname: Xia
authors.affiliation: Department of Plant Protection, Shandong Agricultural University, Tai'an, Shandong, China.
authors.forename: Kaiyun
authors.initials: K
authors.lastname: Wang
mesh_terms: D001549:Benzamides / Q000378:metabolism*; D005659:Fungicides, Industrial / Q000378:metabolism*; D018551:Solanum lycopersicum / Q000378:metabolism*; D010838:Phytophthora / Q000254:growth & development*; D035261:Plant Components, Aerial / Q000378:metabolism; D010935:Plant Diseases; D018517:Plant Roots / Q000378:metabolism; D012987:Soil
chemical_list: D001549:Benzamides; D005659:Fungicides, Industrial; D012987:Soil; C557577:fluopicolide
keywords: Phytophthora blight; control efficiency; fluopicolide; greenhouse tomato; high-performance liquid chromatography; soil application