[Field evaluation of a novel plant molluscicide "Luo-Wei" against Oncomelania hupensis I molluscicidal effect by the spraying method in lake and marshland regions].
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
; 25(2): 125-8, 2013 Apr.
Article
em Zh
| MEDLINE
| ID: mdl-23894829
ABSTRACT
OBJECTIVE:
To evaluate the field effect of a novel plant molluscicide "Luo-wei" (Tea-seed distilled saponins, TDS) against Oncomelania hupensis in the lake and marshland regions.METHODS:
A spraying experiment was carried out in the grassland of two schistosomiasis endemic counties, including Xingzi in Jiangxi Province and the Huarong in Hunan Province, to assess the molluscicidal effect of 4% TDS comparing with 50% wettable powder of niclosamide ethanolamine salt (WPN). The chi2 test was used to examine the differences between regions, molluscicides, or days after spraying.RESULTS:
Following 1, 3, 7, and 15 days of test, the snail mortality showed a simultaneous increase both in TDS group (70.43%-86.88%) and WPN group (70.21%-85.35%). There is no significant difference between TDS and WPN of day 1, 7 and 15 (all P values > 0.05), but except for day 3 (chi2 = 3.910, P = 0.048). By the end of day 15, the snail mortality for TDS was 86.53% in Xingzi and 88.28% in Huarong, while for WPN was 83.04% in Xingzi and 93.69% in Huarong respectively; the decline rate of snail density for TDS was 85.29% in Xingzi and 93.53% in Huarong, while for WPN was 85.29% in Xingzi and 93.53% in Huarong respectively. The adjusted mortality of different days ranged from 69.63% to 86.54% in the the TDS group, and 69.41% to 86.54% in the WPN group.CONCLUSION:
The molluscicidal effect of TDS by spraying is similar to that of WPN. It is time to popularize this new plant molluscicide (TDS) in a wider field.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Caramujos
/
Moluscocidas
Limite:
Animals
Idioma:
Zh
Revista:
Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
China