1.Snail control by using soil pasting mixed with niclosamide.
Zi-song WU ; Tian-gui WANG ; Xiao-sheng ZHANG ; Bo ZHONG ; Liang XU ; Gui-bin GAO ; Ben-fu TAN ; Yong MAO ; Meng TANG ; Ming-kang XIE ; Wu-li YIHUO ; Shi-zhong WANG ; Chun-hua MA ; Fa-sen XU ; Dong-chuan QIU
Chinese Journal of Preventive Medicine 2008;42(8):569-573
OBJECTIVETo evaluate the effect of snail control through soil pasting mixed with niclosamide.
METHODSFour sites were selected in different epidemic areas in Sichuan province. Soil pasting mixed with niclosamide was carried on, and the dosage was 0 g/m2, 4 g/m2, 6 g/m2, 8 g/m2 and 10 g/m2 respectively. The mortality rate of snail and the density of snail were observed after 7, 15, 30, 90 and 180 days.
RESULTSThe mortality rate of snail was more than 43.3% in blank group after 30 days. The mortality rate of snail was from 75.3% to 100.0% at 4 g/m2 group after 30 days. The mortality rate of snail in 4 g/m2 group was significantly higher than that in the blank group (chi2 = 31.27, P < 0.05). There was no significant difference in the mortality rate of snail among all study groups (chi2 = 1.07, P > 0.05). The decrease rate of snail density was more than 90%. The mortality rate of snail was about 30% higher in Chantu group than Qutu group. The unit cost of Pasting-Mixing Drug with Soil was from 5 to 7 times of spray method, but the total cost was similar for the. two methods at the endpoint of the snail control.
CONCLUSIONThe effect of soil pasting mixed with niclosamide is good, and the dosage of 4-6 g/m2 is suggested in snail control.
Animals ; Molluscacides ; Niclosamide ; Pest Control ; Schistosomiasis ; epidemiology ; prevention & control ; Snails ; Soil
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