逻辑关系理不顺

nemo11

 生物防除剂的风险分析 这篇文章，为了安全不贴全文章了

Moreover, determining the potential risks of biocontrol agents before they are used is difficult, especially when a nonnative agent is introduced, because, unlike a chemical pesticide, a biocontrol agent may adapt in unpredictable ways, so that it can feed on or otherwise harm new hosts.

这句话怎么也不理解，这里new hosts到底指谁？ biocontrol agent被引入怎么会破坏new hosts ?

nemo11

up

nemo11

是啊，是我啊~~aeoluseros你也来这里逛了？多谢，多谢啊

new hosts是针对nonnative biocontrol agent来说的，也就是新的宿主。

感觉这个biocontrol agents 就是个新的宿主。

能帮我翻译以下上边这句话吗？感觉还是不懂