The purpose of this research was condacted to understand effectiveness and to determine formulation of solid extraction from fermented of Lantana camara and Bacillus thuringiensis for controlling the nettle carterpillar on palm oil. Experimental research compiled in Competely Randomized Design (CRD), with single factor experimental design. That are: The ratio of natural media LCPKS (Waste Liquid of Palm Oil) and Coconut Water, consisting of 5 treatments: (A) LCPKS: Coconut Water (1: 0), (B) LCPKS and Coconut Water (1: 3), (C) LCPKS and Coconut Water (1: 1), (D) LCPKS and Coconut Water (3: 1), (E) LCPKS and Coconut Water (0: 1). The researcher parameters were: physical characteristics during the fermentation such as: (temperature, pH, color, aroma, water contens and TDS), population dynamics and identification of Bacillus thuringiensis, and Bioassay in nettle carterpillar on palm oil. The parameters used consisted of mortality (%), death rate (day) and efficacy (%). The result showed the physical characteristic in fermentation process was change such as: decrease in temperature up to 25.66oC, pH 3.63, Dark Brown colour, Strong aroma, an increase of TDS value up to 1360 ppm and decrease water contens 69%. The result of solid extraction of fermented Lantana camara and Bacillus thuringiensis in a Wettable powder showed resulted in the comparison treatment of natural media of LCPKS and Coconut Water (1: 1) with the highest growth of Bacillius thuringiensis. In the bioassay test each formula is tested on the nettle (Setora nitens). The solid of Lantana camara fermented by Bacillus thuringiensis with LCPKS : Coconut water (0 : 1) and (3 : 1) has 70% mortality, 4.00 death rate, and 70% efficacy.