00493    a2200133   4500082001500000100002400015245014200039260004600181300001500227650003000242650005100272650001900323650001700342  a632.9bKEL  aKelaniyangoda, D.B.  aIndentification of viruses using symptoms and transmissionbfor the course modulsHC 4171-pest management in horticulture BT 4168-virology  aMakandurabWayamba Universityc2009g2009  a19p.c29cm  aPEST CONTROL HORTICULTURE  aPEST MANAGEMENT HORTICULTURE TEACHING MATERIAL  aVIRUS DISEASES  aHORTICULTURE