卡诺确认它是一种细菌孢子，与现代的球形芽孢杆菌有亲缘关系，后者往往被用于杀死蚊子的幼虫。
Cano identified it as a bacterial spore related to the modern Bacillus sphaericus, which is used to kill mosquito larvae.
多年来，有机农业种植者一直在使用有苏云金芽孢杆菌（以下称作Bt）的喷雾.Bt是一种天然的细菌，是对特定昆虫有毒害作用的不同种的菌种。
For years, organic farmers have been using sprays containing Bacillus thuringiensis, or Bt, a naturally occurring bacteria, different strains of which are toxic to certain insects.
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