A pesticide degrading strain NBL-B0078 was isolated from soil and water contaminated with pesticides by enrichment domestication,isolation and purification.It was identified by morphological,physio-biochemical,16S rRNA sequence analysis.And the safety of NBL-B0078 to crops and its abilities to degrade pesticide residues in soil and radish were investigated.The rusults showed that strain NBL-B0078 had good degradation ability,the degradation rates to chlorothalonil,dichlorvos,beta-cypermethrin,2,4-D and dimethomorph were 100％,63.64％,75.00％,69.23％and 83.54％,respectively.After molecular identification,strain NBL-B0078 was identified as Bacillus subtilis subsp.spizizenii.The degrading strain could significantly reduce pesticide residues in soil and radish,and it had good development prospect.
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