4.Journals Published in Sri Lanka

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Author: search.filters.author.Jayasuriya, K.E.Subject: search.filters.subject.Root diseases

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    Penta chloro phenol - effective and economical fungicide for the management of white root disease caused by Rigidoporus lignosus in Sri Lanka
    (Rubber Research Institute of Sri Lanka. Agalawatte, 1995) Jayasinghe, C.K.; Jayasuriya, K.E.; Fernando, T.H.P.S.
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    In vitro interactions between Rigidoporus lignosus, the case of white root disease of rubber and some potentially antagonistic fungi
    (Rubber Research Institute of Sri Lanka. Agalawatte, 1995) Jayasuriya, K.E.; Deacon, J.W.
    The modes of aaction of fungi potentially antagonistic against R. lignosus were assessed in vitro by studying their ability (a)to cause pre- or post-contact damage to R. lignosus hyphae in video taped interactions on thin purified water agar films and, (b) to displace the established pathogen from woody inocula. The most fungi were Trichoderma spp. which produced volatile or non-volatile inhibitors. Basidiomycetes such as Trametes sp. caused hyphal interface similar to that of Phlebiopsis gigantea, a commercial biocontrol agent of Heterobasidion annosum in pine stumps. species of Trametes and Aspergillus partially or completely displaced R. lignosus from previousley colonized woody inocula.
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    Weakening effect of 2-furaldehyde on Rigidoporus lignosus the cause of white root disease of rubber
    (Rubber Research Institute of Sri Lanka. Agalawatte, 1996) Jayasuriya, K.E.; Deacon, J.W.; Fernando, T.H.P.S.
    Furfuraldehyde is recognized as a potential fumigant which has the ability to weaken rigidoporus lignosus in artificially or naturally infected rubber root inocula. Addition of sulphur to soil at 100 g per 75 Kg of soil, inactivated or prevented the formation of R. lignosus mycelial cords from artificially or naturally infected inocula. Drenching 2.4 per cent aqueous solution of furfuraldehyde in to soil (1 liter/75 Kg) where R. lignosus inocula were buried, caused weakening or inactivation of R. lignosus in artificially or naturally infected inocula. However, combination of two treatments had no ssynergistic effect on both types of R. lignosus inocula in soil.