Santhirasegeram, K.Ekanayake, U.B.M.2014-06-032014-06-031964Proceedings of SLAAS Annual Sessions, Sri Lanka. Colombo, 1964.20:p...https://dl-cri.nsf.gov.lk//handle/1/2821SoilsHemicyclophera longicaudataMedicago sativaGravel soilsHemicycliophora longicaudata (Loos) a possible cause of symptoms observed with Medicago sativa on Gonapinuwela gravel in pots