2019•PubMedRequires access
[Molluscicidal activity of 25% wettable powder of pyriclobenzuron sulphate against Oncomelania hupensis robertsoni].
Luo Bing-Rong, Wang Wei-Si, Junmin Yao, Shi‐Zhu Li, Yang Hua, Yang Jing, Shao-rong Chen, Yuhua Liu, Liping Duan
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Abstract
OBJECTIVE: in the mountain regions of Yunan Province, and test its toxicity to fish, so as to provide scientific evidence for the extensive application of this molluscicide in schistosomiasis-endemic foci of Yunan Province. METHODS: was assessed by using the immersion and spraying method, and the acute toxicity of 25% PBU to carp fries was tested, while 25% wettable powder of niclosamide ethanolamine salt (50% WPNES) served as a control. RESULTS: values > 0.05). The 24-, 48- and 72-hour LC50 values of 25% PBU to carp fries were 29.38, 24.62 and 23.38 mg/L, respectively, and no fish death was observed within 72 hours of exposure to 25% PBU at a concentration of 17.5 mg/L and lower. CONCLUSIONS: for field spraying in schistosomiasis-endemic areas of Yunnan Province.