Alexandro David Christian Pengarang

Pemanfaatan Limbah Tembakau Sebagai Insektisida Nabati Untuk Mengendalikan Hama Ulat Grayak ( Spodoptera litura F.). The utilization of tobacco waste as a vegetable insecticide to control armyworm pests (Spodoptera litura F.) Irma Wardati, SP, MP. as chief counselor and Titien Fatimah, SP, MP. as a member counselor. Alexandro David Christian Study Program of Plantation Cultivation Departement of Agricultural Production Program Studi Budidaya Tanaman Perkebunan Jurusan Produksi Pertanian ABSTRACT The research was aimed to knowing the effectiveness of tobacco waste as a vegetable insecticide controlling Spodoptera litura larvae. The research was conducted using completely randomized design (CRD) with two factors. The first factors was the type of insecticides with 5 concentration i.e control (0%), tobacco waste insecticide concentration of 10% and 15%, tobacco liquid smoke insecticide concentration of 5% and 10%. The second factors is insecticide application method i.e larvae spray method and feed dipping method. The results of the research showed that tobacco waste was effective as an vegetable insecticide against Spodoptera litura larvae. The best results are shown by combination tobacco liquid smoke concentration 5% and feed dipping method with a LT 50 value of 79 hours Key words : tobacco waste, tobacco liquid smoke, type of insecticide, insecticide application method,