International Journal of Pure and Applied Zoology

- International Journal of Pure and Applied Zoology (2015) Volume 3, Issue 3

The Effect of Plant Extract on The Growth of Bulinus (Physopsis) Globosus

Studies (in-vitro test) to reveal the molluscicidal effects to aqueous extract of Tetrapleura tetraptera on the growth of Bulinus (physophis) globosus was carried out in the laboratory. The results showed that the efficacy of T. tetraptera extract on the mortality of B. globosus varied with its concentrations. At 25% concentration of T. tetraptera extract, it was observed that seven hundred and seventy-seven (777) snails were found dead at one hour exposure representing 3 8.9% mortality rate. At 100% concentration of T. tetraptera extract, which was the highest, one thousand, two hundred and thirty-three (1,233) snails were found dead at one hour exposure representing 61.6% mortality rate. There was no significant difference (t = 0.018; P>0.05) between the mortality rates at 50% and 75% level of concentrations. However, there was a significant different (t = 1.05; P<0.05) between the mortality rates at 75% and 100% level of concentrations with minutes exposure. It was also highlighted that the toxicant of T. tetraptera could be used in low doses at transmission foci to reduce schistosome infection in snails.

Author(s): Adewole, S.O., Agunbiade, R.O., Ayeni, S.K. and Omonijo, A.O.

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