The purpose of this research is to know the combination of natural carrier material on solid extraction of fermented Lantana camara and Bacillus thuringiensis in controlling the fire caterpillar on oil palm. This research used experimental research compiled in Completely Randomized Design (CRD), with single factor experimental design. Stage 1: the ratio of natural media LCPKS 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 observed physical changes during fermentation (temperature, pH, color, aroma, and TDS), population dynamics and identification of Bacillus thuringiensis. Stage 2: the extraction of solids of fermented L. camara and B. thuringiensis with various solvents, consisting of 15 treatments: (A) LCPKS and Coconut Water (1: 0) extraction with Methanol, (B) LCPKS and Coconut Water (1 : Extraction with Acetone, (C) LCPKS and Coconut Water (1: 0) extraction with Ethanol, (D) LCPKS and Coconut Water (1: 3) extraction with Methanol, (E) LCPKS and Coconut Water (1: 3 ) extraction with Acetone, (F) LCPKS and Coconut Water extraction with Ethanol, (G) LCPKS and Coconut Water (1: 1) extraction with Methanol, (H) LCPKS and Coconut Water (1: 1) extraction with Acetone, (I ) LCPKS and Coconut Water (1: 1) extraction with Ethanol, (J) LCPKS and Coconut Water (3: 1) extraction with Methanol, (K) LCPKS and Coconut Water (3: 1) extraction with Acetone, (L) LCPKS and Coconut Water (3: 1) extraction with Ethanol, ai (M) LCPKS and Coconut Water (0: 1) extraction with Methanol, (N) LCPKS and Coconut Water (0: 1) extraction with Acetone, (O) LCPKS and Coconut Water (0: 1) extraction with Ethanol. Parameters: the volume of extraction solvent, rendement of pasta, and the addition of emulsifier. The results of the research shows there were changes during the fermentation process, those are the decreasing temperature up to 28.0oC, pH 3.73, the Dark Brown color, the smell of the aroma is stingy, and an increasing of TDS value up to 1360 ppm. The results of solid extraction of fermented Lantana camara and Bacillus thuringiensis showed the comparison treatment of natural media of LCPKS and Coconut Water (1: 1) with Acetone solvent having the highest yield of 15%.