Bt is a favored organic pesticide because its toxicity is very specific, making it harmless to just about everything but the pest in question.
Bt由于它的毒性非常专一，只是对昆虫有毒性而受有机农药欢迎。
2
Specific Safety information: no known toxicity.
特别安全信息：未发现毒性。
3
Since diarrhea and skin toxicity limit the use of this drug in some patients, the researchers looked for a specific variation in the ABCG2 gene that could disrupt the function of the ABCG2 protein.