Hariharan, R.Yamini, P.2020-06-162020-06-162007Annals of the Sri Lanka Department of Agriculture, 9:p.223-226https://dl-doa.nsf.gov.lk/handle/1/2237Plant ProtectionPesticidesVegetablesVavuniyaPattern of UsePesticide usage in vegetable cultivation in vavuniya districtArticle