Volume 15, Issue 3
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



The molluscicidal effect of Bayer 73 on adults, mud-encapsulated eggs, and population growth of the amphibious Oriental schistosome-host snail was studied under laboratory conditions. Bayer 73 proved to be more effective per unit of concentration than CuSO and NaPCP, as reported previously. A higher concentration was necessary to kill adult snails than to kill eggs, although the presence of mud with the adults may have been a contributing factor. Concentrations of 0.3, 0.7, and 1.0 ppm markedly reduced the number of young in cultures in comparison with untreated cultures. For optimum results, solutions should be freshly prepared.


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