title: [Fungal Disease Survey and Pathogen Identification on Codonopsis tangshen in Chongqing].
abstract: OBJECTIVE
  To confirm the current major diseases and corresponding pathogens of Codonopsis tangshen in Chongqing.
  
  
  METHODS
  The main cultivation regions of Codonopsis tangshen in Chongqing were systematically investigated, and the pathogens of the obtained specimens were isolated and identified.
  
  
  RESULTS
  Totally, five fungal diseases in Codonopsis tangshen were identified, including rust disease (Puccinia campanumoeae Pat.), root rot (Fusarium oxysporum Schl.), violet root rot (Helicobasidium mompa Tanaka), powdery mildew (Sphaerotheca codonopsis (Golov.) Z. Y. Zhao), and blight (Septoria codonopsidis Ziling). Currently, the diseases with the serious damage on Codonopsis tangshen included rust disease, root rot and violet root rot.
  
  
  CONCLUSIONS
  Rust disease, the severest disease,whose incidence reaches 100%, is an urgent problem waiting to be solved effectively in Codonopsis tangshen cultivation.
authors.forename: Zhong-lian
authors.initials: ZL
authors.lastname: Yu
authors.forename: Mei-yan
authors.initials: MY
authors.lastname: Lei
authors.forename: Sheng-cai
authors.initials: SC
authors.lastname: Pu
authors.forename: Zhong
authors.initials: Z
authors.lastname: Xiao
authors.forename: Hou-qiang
authors.initials: HQ
authors.lastname: Cao
authors.forename: Cheng-qian
authors.initials: CQ
authors.lastname: Yang
mesh_terms: D001203:Ascomycota; D001487:Basidiomycota; D002681:China; D029745:Codonopsis / Q000382:microbiology*; D005670:Fusarium; D010935:Plant Diseases / Q000382:microbiology*; D018517:Plant Roots / Q000382:microbiology