Methods of controlling agricultural pests are disclosed. An aerated liquid mixture is formed from a composition containing a bacterial nutrient source, a nitrogen-containing compound, a phosphate-containing compound, a magnesium-containing compound, a buffer, a chitinase inducer, and at least one strain of bacteria that produces chitinase. The liquid mixture is administered to soil and plants, and acts as an organic biological pesticide.揭示了防治農業害蟲的方法。從組合物形成充氣液體混合物，該組合物含有細菌營養源、含氮化合物、含磷化合物、含鎂化合物、緩衝劑、幾丁質酶誘導劑、以及至少一種產生幾丁質酶的細菌菌株。該液體混合物施用於土壤及植物，並充當有機生物殺蟲劑。
