Wijewantha, R.T.2012-06-252012-06-251959Journal of the Rubber Research Institute of Ceylon35(3)pp.58-69https://dl.nsf.gov.lk/handle/1/8748AgricultureRubberPlant diseasesLeaf fallOidiumSulphur dustingReport on the sulphur dusting of smallholdings in 1958/59Article