ACTIVITY - Insecticide; Antimicrobial. A 10 m of each of the 11 kinds of microbial culture broth (S3P6840AF4, SJP6844AF5, SJP6726AF6, SJP6843AF7, SJP6732B2, SJP6719B3, SJP6734B4, SJP6841L2, SJP6720L3, SJP6723L4 and SJP6742L5) was applied to mosquito larvae. In the group treated with each of SJP6734B4 and SJP6841L2, the mosquito larvae began to be killed 6 hours after the microbial treatment, and were all killed 9 hours after the microbial treatment. In the group treated with SJP6732B2, the mosquito larvae began to be killed 8 hours after the microbial treatment and were all killed 12 hours after the microbial treatment.    MECHANISM OF ACTION - None Given.    EXAMPLE - A 300 g of toxic plants, including Aconiti ciliare, Aconitum carmichaeli, Quisqualis indica, Aconitum koreanum, Melia azedarah var japonica, and Styrax japonica, were diluted at the same amount, added to 3 liters of water; and subjected to hot-water extraction at 70-80degreesC for 2-3 hours, thus extracting a toxic substance. The extract and salt were periodically spread onto various soils, including barren soil, rich soil, leaf mold and vermicompost, for 6 months, and then the soils treated with the extract were collected, and applied to food waste compost fermentation facility. As a result, 12 kinds of offensive odors, including ammonia and sulfide hydrogen, were measured. Also, in the food waste compost fermentation facility, composts were produced in an amount of 12-13 tons/day and its water content was 65-70%, but when the soils treated with the extract were applied to the plant, the production of composts was decreased to 5-6 tons/day, its water content was 45-48%, and its volume was also reduced to one third. Moreover, when the extract-treated soils were applied to a container for separating and storing unrecyclable materials in the food waste compost fermentation facility, fly larvae were not generated. In order to confirm microorganisms causing the effects, composts fermented with the extract-treated soils for 10 days and composts fermented with the soils for 30 days were collected, and analyzed. As a result, microorganisms, which were not present in prior composts untreated with the extract-treated soils, were detected and each of the microorganisms was isolated.