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Item A leaf spot disease of Crotalaria spp(Tea Research Institute. Thalawakele, 1970) Shanmuganathan, N.Item Control of Poria root disease with methyl bromide(The Tea Research Institute. Talawakele, 1965) Shanmuganathan, N.; Redlich, W.W.Item The influence of sunshine and rain on tea blister blight, Exobasidium vexans massee. in Ceylon(TRI. Talawakele, 1962) Visser, T.; Shanmuganathan, N.; Sabanayagam, J.V.Item Collar and branch canker in young tea caused by Phomopsis theae petch(The Tea Research Institute. Talawakele, 1965) Shanmuganathan, N.Item Studies on collar and branch canker of young tea (Phomopsis theae petch) ii influence of soil moistrure on the disease(The Tea Research Institute. Talawakele, 1967) Shanmuganathan, N.; Rodrigo, W.R.F.Item Further observations on the oil spot disease of tea(The Tea Research Institute. Talawakele, 1963) Shanmuganathan, N.; Mulder, D.Item Diseases the enemies of tea(The Tea Research Institute. Talawakele, 1967) Shanmuganathan, N.Item Some observations on Poria control by soil fumigation with Methyl bromide(The Tea Research Institute. Talawakele, 1967) Shanmuganathan, N.; Fernando, S.R.A.