title: [Molluscicidal effect of simple black film mulching in mountainous areas of Yunnan Province].
abstract: OBJECTIVE
  To evaluate the molluscicidal effect of black plastic mulching in mountainous areas of Yunnan Province.
  
  
  METHODS
  In Leqiu Village, Nanjian County, Yunnan Province, the terraced fields with Oncomelania hupensis snails were divided into A, B, C, D, E groups, and of which, A, B, C, D groups, as the experimental groups, were administered with simple black plastic mulching for 30 days, 60 days, 90 days and 120 days respectively; Group E, as the control group, was administered with 50% niclosamide ethanolamine salt wettable powder spraying.
  
  
  RESULTS
  In Group C and D (simple black film mulching for 90 days and 120 days), no snails were found after the administration, the average density of living snails decreased by 100%, and the cost of one year was similar to that of the control group.
  
  
  CONCLUSIONS
  The molluscicidal effect of black plastic mulching is good in mountainous areas.
authors.forename: Meng-xian
authors.initials: MX
authors.lastname: Yang
authors.forename: Ji-mao
authors.initials: JM
authors.lastname: Zuo
authors.forename: Jia-xin
authors.initials: JX
authors.lastname: Zuo
authors.forename: Wen-ying
authors.initials: WY
authors.lastname: Yuan
authors.forename: Neng-jun
authors.initials: NJ
authors.lastname: Wang
authors.forename: Jian-fen
authors.initials: JF
authors.lastname: Li
mesh_terms: D000818:Animals; D002681:China; D003140:Communicable Disease Control / Q000191:economics / Q000379:methods*; D003362:Cost-Benefit Analysis; D012908:Snails; D012987:Soil; D013696:Temperature
chemical_list: D012987:Soil