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Item Pests and diseases of Hevea rubber and their geographical distribution(Rubber Research Institute of Sri Lanka. Agalawatta, 1999) Jayasinghe, C.K.Item Guide to identification and management of diseases and other disorders in rubber plantations of Sri Lanka(Rubber Research Institute of Sri Lanka. Agalawatta, 1998) Jayasuriya, K.E.; Jayasinghe, C.K.Item Mycoflora associated with Hevea phylloplane(Rubber Research Institute. Agalawatta, 2000) Jayasinghe, C.K.Item Cultural characteristics and reproductive morphology of Geotrichum sp.. a guide to distinguish Geotrichum from Rigidoporus microporus(Rubber Research Institute. Agalawatta, 1998) Jayasinghe, C.K.; Wettasinghe, J.L.P.C.Culture characteristics of Geotrichum sp. isolate IMI 354411, a fungus responsible for the saprophytic colonization on Hevea roots are described. It was also shown that this fungus could be easily distinguished from Regidoporus lignosus, a devastating pathogens of Hevea roots, by the zonate and cloudy appearence of its colonies on malt agar with a cream undersurface and the disarticulating hyphae which later break upto arthric conidia.Item Phytophthora epidemics - possibility of management using resistant clones(Rubber Research Institute of Sri Lanka. Agalawatte, 1996) Jayasinghe, C.K.; Jayaratne, A.H.R.Item 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.Item Corynespora leaf fall. the most challenging rubber disease in Asian and African continents(Rubber Research Institute. Agalawatta, 2000) Jayasinghe, C.K.Item Cell wall degrading enzyme secretion by Cylindrocladium quinqueseptatum(Rubber Research Institute. Agalawatta, 1999) Jayasinghe, C.K.; Wijesundera, R.L.C.Cylindrocladium quinqueseptatum causes leaf fall of clove in Sri Lanka and is responsible for the leaf spots of rubber in Malaysia.only one isolate (KP)from four pathogenic isolates examined secreted polygalacturanase(PG) when grown in liquid media.None ofthe isolates secreted pectin lyase(PL).The extracts of clove and rubber leaf tissues,inoculated with the KP isolate did not show any PG and PL activity .The leaf tissue did not have the ability to ingibit c.quinqueseptatum PG produced in culture.All isolates of C.quinquesepltatum secreted cellulases viz.cellobiase and b-glucosidase in culture.cellobiase was detected in the inoculated rubber leaves,The levels of B-glucosidase,an ingerent enzyme of Hevea leaves,also increased rapidly following infection.The results indicate that pectic enxymes play a minimal or no role in disease developmet of C.quinqueseptatum infecton in cloves and Hevea.Thus cellulolyic enzyme probably play a nutritive role.Item Strategies to prevent South American leaf blight entering into the territory of the Republic of Sri Lanka(Rubber Research Institute. Agalawatta, 1998) Jayasinghe, C.K.Item Changing scene of the disease scenario of the rubber tree in Sri Lanka. history and current status(Rubber Research Institute of Sri Lanka. Agalawatta, 2009) Jayasinghe, C.K.
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