Uji Efektivitas Termitisida Nabati Terhadap Mortaliatas Rayap (Coptotermes curvinagthus Holmgren) (Isoptera : Rhinotermitidae) di Laboratorium The Effectiveness of Botanical Termiticides on Mortality of Termites (Coptotermes Curvinagthus Holmgren) (Isopte - Hutabarat, Nova Kristina; Universitas Sumatera Utara (Program studi Agroekoteknologi, Fakultas Pertanian, Universitas Sumatera Utara-Medan, 2015)