boll weevil

Boll weevil : grayish weevil that lays its eggs in cotton bolls destroying the cotton.

略带灰色的象鼻虫,在棉铃上产卵以破坏棉花.

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In the long run, they saw that the boll weevil had, in fact, done them a favor by destroying their crops.

从长远来看，他们发现棉铃象甲虫虽破坏了农作物，但实际上反倒帮了他们的忙。

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Gossypol, which is produced by gland cells in the leaves of cotton, is an attractant to the boll weevil.

棉叶腺胞分泌的棉酚对棉铃象鼻虫是一种引诱剂。

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It's called the boll weevil because it destroys the cotton boll, the seed pod that contains the cotton.

之所以会被称为棉子象鼻虫，是因为这种昆虫会毁坏棉花球，以及含有棉花的种子荚。

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But in the early years of the century, the boll weevil began devastating the cotton farms in the south.

然而在上世纪初期，棉铃象甲开始侵嗜美国南部的棉花农场。

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The country has pretty much defeated the boll weevil, and the Department of Agriculture individually tests every bale on obscure measures such as the tensile strength of the fibres.

棉铃象虫在美国难以为害，农业部会拿纤维的抗拉强度等玄深标准逐个检测每个棉包。

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Farm demonstration work in the South helped to fight the cotton boll weevil.

南部农场示范工作大大帮助了对棉花象鼻虫的防治.

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