摘要
目的观察塑料薄膜（塑膜）覆盖法的灭螺效果。方法在钉螺孳生的荒地设单纯覆膜、覆膜辅助碳铵、覆膜辅助杀螺胺3组；沟渠设单纯覆膜、覆膜辅助碳铵2组，人工除障。每组设4个投螺点，每点投放钉螺100只，再将塑膜均匀覆盖封闭试区。分别于灭螺后3、7、15d和30d观察钉螺死亡情况。结果荒地单纯覆膜组灭螺后15d钉螺死亡率为20．77％，30d达96．92％；覆膜辅助杀螺胺组灭螺后3d钉螺死亡率为80．46％。灭螺后30d各组钉螺死亡率为96．92％～100％。结论塑膜覆盖法具有一定的杀螺效果，可在丘陵亚型、水网型血吸虫病流行地区合理选用。
Objective To evaluate the molluscieidal effect of the plastic film mulch covering method. Methods In the bar- ren land with a lot of Oncomelania hupensis snails, 3 experimental groups were set up, in which respectively using 3 different methods： a simple plastic film mulch covering method, film assisted with ammonium bicarbonate, and film assisted with amine molluseicide. In the canals, two experimental groups were set up, in which respectively using 2 different methods： simple plastic film mulch covering method and film assisted with ammonium bicarbonate. In above-mentioned areas, obstacles were cleared artifi- cially. In each experiment group, 4 observation spots were set up, and 100 living snails were pot in each spot, and then, the plas- tic film mulch was evenly covered. The status of the snails was observed 3, 7, 15 and 30 days after the intervention. Results In the barren land, the snail death rates of the simple plastic film group were 20.77% and 96.92% 15 days and 30 days after the inter- vention, respectively. The snail death rate of the film assisted with amine molluseicide group was 80.46% 3 days after the interven- tion. In all the experiment groups, the snail death rates were from 96.92 to 100% 30 days after the intervention. Conclusion The plastic film mulch covering method has a great molluscicide effect in the hill subtype and water network type of schistosomiasis epi- demic areas.
出处
《中国血吸虫病防治杂志》
CAS
CSCD
2013年第4期399-401,共3页
Chinese Journal of Schistosomiasis Control
关键词
湖北钉螺
塑料薄膜
杀螺效果
Oncomelania hupensis
Film mulch
Molluscicidal effect
