Effect Of Some Plant Extracts For The Control Of Tomato Bacterial Spot Bacterium (Xanthomonas Campestris Pv. Vesicatoria) In Culture

ABSTRACT

 Investigations were carried to assess the effect of cold and hot water plant extracts for the control df Xanthonionas vesicalorid in the laboratory The plants used were. A inc//ca (neem seed), G. ku/ct (bitter cola) Z. of/ic/na/c ( ginger seed, ) P. guinecense (black peper) and M. fragrans(nut meg) at different concentrations ((10.20. 30%) results sho\ved that all plant extracts were effective in reducing the growth of bacterial spot bacterium of tcmathXaniiun;wnas cainpestris pv. vesicatoria) in vitro.The five plant extract evaluated for bactericidal etfcct res'lied in significant (P<0.05), reduction in diseases when compared with the untreated control. A. md/ca Z. of/Ic/na/c P. guineense of cold water extract significantly (P><0.05) inhibited hcteriun gruwt by 78.92, 77.09, 76.26% respectively, while in the hot water extract , A. inc//ca, P. ii/nceiise, significantly P>< 0.05) inhibited bacterium growth h' 76.73 and 76.69% respectively on nutren[ agarmedium. The plant extracts have the potential both in the cold and hot water xtrc1 in inhibiting the growth of (Xanihoinonas campcs/r/s. pv. vesicalor/u ) 01' tomato.