Unsurprisingly, pesticides, which are used to ward off agricultural pests, are a major reason.

不出所料，用于抵御农业害杀剂是一个主要原因。

SIT has been used in North America to eliminate screwworm flies, an agricultural pest, and to suppress several species of crop-munching fruit flies.

SIT已在北美被用于消灭螺旋蝇(一种农业害)制几种吃庄稼果蝇。

It’s difficult to estimate how much damage agricultural pests do every year, but it’s believed to be in the billions.

。 难估计农业害每年造成损失有多大， 但据信损失金额达数十亿美元。

The US bans their importation as they can carry parasites including one that can leads to meningitis and are considered a highly invasive agricultural pest. BBC News.

美国禁止进口它们，因为它们可能携带寄生，包括一种可能导致脑膜炎寄生，被认为是一种高度侵入性农业害。英国广播公司新闻。