Plant Pathology Journal1812-53871812-5425Asian Network for Scientific Information10.3923/ppj.2011.66.72in vitro Growth of Ralstonia slanacearum (Smith), the Causal Agent of Bacterial Wilt of Irish Potatoes]]>WaguraA. G.WagaiS. O.ManguroL. GichimuB. M.22011102The antibacterial effect of crude medicinal plant extracts of Ocimum gratissimum, Brassica oleracea var. botrytis and Ipomoea batatas on Ralstonia solanacearum (Smith) extracted from infected potato tubers was determined by in vitro study using ethyl acetate and methanol solvents. The extracts were used at concentrations of 0.4, 0.2, 0.1, 0.05 and 0.025 mg mL-1. It was found that all the plant extracts used at their different concentrations except methanol extracts of Ipomea batatas at 0.025 mg mL-1 were effective to varying degrees in controlling the growth of bacterial colonies. The best results were observed with ethyl acetate extracts of Ipomoea batatas at concentration of 0.4 mg mL-1 giving mean inhibition zone of 4.2 mm followed by ethyl acetate extract of Brassica oleracea at concentration of 0.05 mg mL-1 that was 4.12 mm.]]>Adebolu, T.T. and S.A. Oladimeji,2005Ocimum gratissimum on selected diarrhoea causing bacteria in Southwestern Nigeria.]]>4682684Akinyemi, K.O., U.E. Mendie, S.T. Smith, A.O. Oyefolu and A.O. Coker,200454560Amadi, J.E., S.O. Salami and C.S. Eze,2010Ocimum gratissimum L.).]]>1163166Baker, C.N., C. Thornsberry and R.W. Hawkinson,198317450457Barry, A.L., M.B. Coyle, C. Thornsberry, E.H. Gerlach and R.W. Hawkinson,197910885889Cevallos-Casals, B.A. and L.A. Cisneros-Zevallos,2002Ipomoea batatas L.).]]>583195203Lemos, J.D.A., X.S. Passos, O.D.F.L. Fernandes, J.R. de Paula and P.H. Ferri et al.,2005Ocimum gratissimum L. towards Cryptococcus neoformans.]]>1005558De Souza, E.L., E. de Oliveira Lima, K.R. de Luna Freire and C.P. de Sousa,200548245250Deans, S.G. and G. Ritchie,19875165180Dorman, H.J.D. and S.G. Deans,200088308316Eaton, D.C.,1989pp: 140-151pp: 140-151FAO,20062006Felix, R., O.J. Onyango and O.M. Eliazer,2010Ralstonia solanacearum) in Kenya.]]>9122128Graham, J.G., M.L. Quinn, D.S. Fabricant and N.R. Farnsworth,200073347377Ishiguro, K., J. Toyama and T.I. Rumagai,200463713391345Islam, S.,2006Ipomoea batatas L.) Leaf: Its potential effect on human health and nutrition.]]>71R13R21Iwalokun, B.A., G.O. Gbenle, T.A. Adewole, S.I. Smith, K.A. Akinsinde and E.O. Omonigbehin,2003Ocimum gratissimum L. essential oil at subinhibitory concentrations on virulent and multidrug-resistant Shigella strains from Lagos, Nigeria.]]>111477482Jinnah, M.A., K.M. Khalequzzaman, M.S. Islam, M.A.K.S. Siddique and M. Ashrafuzzaman,2002Pseudomonas fluorescens in the field.]]>511671169Junaid, S.A., A.O. Olabode, F.C. Onwuliri, A.E.J. Okwori and S.E. Agina,2006Ocimum gratissimum extracts on some selected bacterial gastrointestinal isolates.]]>523152321Khalequzzaman, K.M., M.A. Jinnah, M.A.A.M. Rashid, M.N.A. Chowdhury and M.M. Alam,2002Pseudomonas fluorescens in controlling bacterial wilt of tomato.]]>17173Kirkegaard, J.,20052005Larkin, R.P. and T.S. Griffins,2007Brassica green manures.]]>2610671077Lemaga, B.,20012001Lemaga, B., D. Siriri and P. Ebanyat,20019257266Lemaga, B., P. Kanzikwera, R. Kakulenzire, J.J. Hakiza and G. Maniz,20019257266Linnette, E.H., E.H. Spaulding and J.P. Truant,19742nd Edn.,pp: 255pp: 255Llorach, R., J.C. Espin, F.A. Tomas-Barberan and F. Ferreres,2003Brassica oleracea L. var. botrytis) by-products as a source of antioxidant phenolics.]]>5121812187Lopez, P., C. Sanchez, R. Batlle and C. Nerin,20055369396946Mbata, T.I. and A. 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