Effect of the Compound CGA 78039 and Streptomycin on the Expression of Bacterial Stem Rot in Dieffenbachia |
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| Authors: | R Vantomme J Swings A Calus I Van Luchene J de Ley |
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| Institution: | R. Vantomme;, J. Swings and J. de Ley, Onderzoekscentrum voor Fytobacteriosen (sectie II), I.W.O.N.L. Laboratorium voor Microbiologie en microbiële Genetica, Ledeganckstraat, 35, 9000 Gent (Belgium). A. Calus;, Bureau voor Biometrie, Sectie Gent, I.W.O.N.L. I. van;Luchene, Floréac, Lochristi (Belgium). |
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| Abstract: | Bacterial stem rot, due to Erwinia chrysanthemi , is a serious problem in ornamental crop protection, e.g. in Dieffenbachia . It was our aim to compare the effect of the synthetic compound CGA 78039 and streptomycin sulphate on the suppression of stem rot disease in Dieffenbachia . Different treatments were applied under natural and artificial infection pressures. Pretreatment of the mother plants with CGA 78039, followed by dipping of the cuttings overnight in the same solution before potting and five subsequent weekly foliar sprays during growth reduced the expression of stem rot in Dieffenbachia significantly. |
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