Performance testing to inhibit the growth of fungus Alternaria sp., Beauveria sp. , And Chaetomium sp. Extracted from soil (Soil Extract) by using the different is in the ground water , soil, fertilizer , organic, fermented plant and soil. normal The results showed that the inhibition of mycelial growth of the fungus, the best result is soil fertilizer organic growth inhibition of the fungus Beauveria sp. Has the most up 81.8 percent of the fungus Alternaria sp. , And Chaetomium sp. Inhibited. growth of 63.4 percent fiber and 41.7 percent, respectively , and ground water can inhibit the growth of fungus is less. The soil, water and biological normal soil can inhibit the growth of filamentous fungi have heels .