Ecologia1996-4021xxxx-xxxxAcademic Journals Inc.10.3923/ecologia.2022.1.6Hirudo medicinalis)]]>Gbe-Emi KemepadeDieware AmawuluEbenezer 12022121Background and Objective: The increased invasiveness of Leeches in many streams, lakes and fishing sites in Bayelsa Staten has called for a prompt control intervention. This study was undertaken to test the effect of the extract of four botanicals, Cassia alata, Costus afer, Ficus sur and Platostoma africanum on the mortality rate of the leech. Materials and Methods: The screening, preparation and extraction of the metabolites from the plant samples followed standard techniques. The leeches were collected from a fishing lake and a stream in Elebele Community of Ogbia, Bayelsa State into a sterilized transparent container using a plastic scoop and transported along with their natural habitat water (stream water) to the Department of Biological Sciences Laboratory. Identification of the leeches followed standard pictorial key. A complete randomized block design was used to set up three treatment groups with varying concentrations of the plant extract. Two hundred and eighty-eight of the leeches previously kept in the aquarium were introduced into the treatments and their death rates were recorded. Results: From the results, five phytochemicals, Alkaloids, Flavonoids, Tannins, Terpenes and Saponins were encountered with the plants. Out of the 288 leeches tested with the plant extract, the mortality rate was 61.5%, with more death recorded with Platostoma africanum. The mean death rate in Cassia alata, Costus afer and Ficus sur and Platostoma africanum ranges from 11.03±9.11-100±0.00, 22.07±19.11-100±0.00, 11.03±9.11-100±0.00 and 47.80±19.22-100±0.00, respectively. Conclusion: The mortality rate increases with an increase in extract concentration. The promising anti hirudinicidal activities of these plants should be employed.]]>Arslan, N. and A. Oktener,201236141145Ahmed, R.B., M. Gammoudi, I. Khaled, S. Tekaya, L. Mansour, S. Alwasel and A.H. Harrath,2015287193Ahmed, R.B., Y. Romdhane and S. Tekaya,20152319Sket, B. and P. Trontelj,2008595129137Borda, E. and M.E. Siddall,200430213225Raffel, T.R., J.R. Dillard and P.J. Hudson,2006Ichthyophonus sp.]]>9212561264Cruz-Lacierda, E.R., J.D. Toledo, J.D. Tan-Fermin and E.M. Burreson,2000Zeylanicobdella arugamensis) infestation in cultured orange-spotted grouper, Epinephelus coioides.]]>185191196Vongsombath, C., H.J. de Boer and K. PĂ„lsson,2011119178182Angaye, T.C.N., E.I. Ohimain E.P. Siasia, P.I. Asaigbe and O.A. Finomo,201423236Abdullahi, K., M.G. Abubakar, R.A. Umar, M.S. Gwarzo, M. Muhammad and H.M. Ibrahim,2011Striga hermonthica (Delile) Benth and Mitracarpus scaber (Zucc.) on Culex quinquefasciatus larvae.]]>32104105Mohankumar, T.K., K.S. Shivanna and V.V. Achuttan,2016Aedes aegypti and Anopheles stephensi in mysore.]]>10303314Bala, A.Y., M.D.A. Bunza and K. Abdullahi,2011In vitro toxicity effect of Citrus sinensis (orange) peel extract on two common tick species of cattle in Sokoto.]]>328791Nwobodo, V.O., S.C. Udedi, I.J. Ezeonwumelu, O.C. Ezeigwe, C.E. Oguazu and E.E. David,2020Costus afer on rats injected with Naja nigricollis venom.]]>151321Nwankwoala, H.O. and S.O. Omemu,20192019Leggett, R. and B.K. Kirchoff,20112011Ejikeme, C.M., C.S. Ezeonu and A.N. Eboatu,201410247270Chibueze, F.U., N.A. Kingsley, K.N. Okorie, A. Akuagwu and N.N. Success,2012Costus afer extract and its alleviation of carbon tetrachloride-induced hepatic oxidative stress and toxicity.]]>2120126Anyanwu, B.O., C.N. Orish, A.N. Ezejiofor, I.L. Nwaogazie and O.E. Orisakwe,2020Costus afer on low dose heavy metal mixture (lead, cadmium and mercury) induced neurotoxicity via antioxidant, anti-inflammatory activities.]]>710321038Anyasor, G.N., K.O. Ogunwenmo, O.A. Oyelana and B.E. Akpofunure,2010948804884Faruq, Z.U., U.A. Rahman M. Bello, M. Obianke and F.A. Atiku,2010Cassia alata (Linn) leaves.]]>1897100Gohil, M.V., S.K. Agrawal, A.K. Saxena, D. Garg, C. Gopimohan and K.K. Bhutani,201048265268Iraqui, P., T. Chakraborty, M.K. Das and R.N.S. Yadav,2019Cassia alata L.]]>98294Arbonnier, M.,20041st Edn.,Pages: 574Pages: 574Timothy, S.Y., C.H. Wazis, R.G. Adati and I.D. Maspalma,2012Cassia alata Linn.]]>2182185Chimezie, C.C., P.M. Eze, A.N. Oli, C.C. Abba, F.A. Onyegbule and C.O. Esimone,2017Platostoma africanum and Psidium guajava against some multi-drug resistant bacteria.]]>18112Bam, J., S. Islam, D. Bhattacharya, D.K. Deka, D.J. Kalita et al.,2016In-vitro effect of some plant extracts on buffalo leech, Hirudinaria manillensis.]]>86988990