Rambukkana, M.De Silva, R.S.Y.Pradeepika, K.K.S.D.Jayakody, D.P.P.2020-08-182020-08-182010Tropical Agriculturist, 158:p.71-95https://dl-doa.nsf.gov.lk/handle/1/2476Weed seed contaminationsEntry pathwayNoxious weedsQuarantineEntry of weeds to Sri Lanka as contaminants of imported vegetable seedsArticle