Chin J Schisto Control ›› 2013, Vol. 25 ›› Issue (6): 630-.

Previous Articles     Next Articles

Comparison of molluscicidal effects of two snail control methods with plastic film covering in hilly regions

ZHOU Yun1 |ZHANG Biao1# |WANG Zhi -mei 1 |ZHAO Jia-huei 1 |MAO Shu1 |XIE De - bing2 |MEI Zhi - zhong2 |ZHANG Jun2 | HONG Qing-biao3 |WANG Wei 3 | SUN Le-ping3*   

  1. 1 Jiangning District Centre for Disease Control and Prevention|Nanjing City|Jiangsu Province|Nanjing 211100| China;2 Tang? shan Health Community Center|Jiangning District|Nanjing City|Jiangsu Province|China;3 Jiangsu Institute of Parasitic Dis? eases| China
  • Online:2013-12-30 Published:2013-12-30
  • Contact: SUN Le?ping

两种塑料地膜覆盖法在丘陵地区灭螺效果比较

周云1|张标1#|王志美1|赵家慧1|冒姝1|谢德兵2|梅枝忠2|张俊2|洪青标3|汪伟3|孙乐平3*   

  1. 1 江苏省南京市江宁区疾病预防控制中心 (南京211100); 2 江苏省南京市江宁区汤山街道社区服务中心; 3 江苏省血吸虫病防治 研究所
  • 通讯作者: 孙乐平
  • 作者简介:周云| 男| 副主任医师。研究方向: 寄生虫病控制
  • 基金资助:
    国家重大科技专项 (2012ZX10004?220); 国家科技支撑计划 (2009BA178B07); 江苏省卫生厅项目 (X201103、 X201114)

Abstract: Objective To evaluate and compare the molluscicidal effects of colorless and black plastic film covering methods against Oncomelania hupensis snails in hilly regions. Methods A hilly setting with high snail density was selected as the study ar? ea,and three groups including the colorless plastic film covering method,black plastic film covering method and control were de? signed. The snail surveys were conducted 1,3,7,15 days and 30 days in each group following plastic film covering,and the mor? tality of snails and reduction of snail density were investigated. The air temperature,soil surface temperature in the control group, as well as the soil surface temperature and the temperatures 5 cm and 15 cm under the soil within the film were recorded. Results The mortality rates of snails were 36.84%,78.94%,95.92%,100.00% and 99.45% 1,3,7,15 days and 30 days following color? less plastic film covering,respectively,and the snail density after 30 days of covering reduced by 99.36% as compared to that be? fore covering,while the mortality rates of snails were 10.08%,8.94%,6.11%,26.15% and 49.32% 1,3,7,15 days and 30 days following black plastic film covering,respectively,and the snail density after 30 days of covering reduced by 58.10% as com? pared to that before covering. There were significant differences in the 1?,3?,7?,15?day and 30?day snail mortality rates between the colorless and black film covering groups(all P values < 0.01),and a significant difference was detected in the snail density be? tween the two groups 30 days after the film covering(P < 0.001) . In addition,the speed,amplitude and duration of the rise in the soil surface temperature within the colorless film were all greater than those within the black film. Conclusion The short ? term molluscicidal effect of the colorless plastic film covering method is significantly superior to that of the black plastic film covering method in summer in hilly regions.

Key words: Oncomelania hupensis; Plastic film;Molluscicidal effect;Hilly region

摘要: 目的 目的 观察并比较无色和黑色塑料地膜覆盖法在丘陵山区的灭螺效果。方法 方法 选择钉螺密度较高的山区环境, 设无色地膜、 黑色地膜和未覆盖地膜对照组3个组。覆盖地膜后1、 3、 7、 15、 30 d对各组进行1次螺情调查, 观察钉螺死亡 率及钉螺密度下降率, 并记录每小时气温、 对照组土表温度、 膜内土表及土下5、 15 cm处温度。结果 结果 无色地膜组1、 3、 7、 15、 30 d钉螺死亡率分别为36.84%、 78.94%、 95.92%、 100.00%和99.45%, 覆盖30 d后较覆盖前钉螺密度下降率为99.36%; 黑色地膜组1、 3、 7、 15、 30 d钉螺死亡率分别为10.08%、 8.94%、 6.11%、 26.15%、 49.32%, 覆盖30 d后较覆盖前钉螺密度下降 率为58.10%。无色和黑色地膜组覆盖地膜后1、 3、 7、 15、 30 d钉螺死亡率差异均有统计学意义 (P均 < 0.01), 覆盖地膜30 d 后的活螺密度差异有统计学意义 (P < 0.001)。无色地膜内土表温度上升速度、 幅度及持续时间均高于黑色地膜。结论 结论 夏季在丘陵山区覆盖无色地膜的近期灭螺效果明显优于黑色地膜。

关键词: 钉螺; 塑料地膜; 灭螺效果; 丘陵山区

CLC Number: