weevil的例句大全

For japonica rice, the grains of most varieties were short and coarse in length and shape. INFLUENCE OF MELIA AZEDARACH SEED COARSE EXTRACT ON BIOLOGICAL ACTIVITY OF RICE WEEVIL

绝大多数粳稻品种的米粒属短、粗类型。苦楝籽粗提物对玉米象生物活性的影响

Influence of Melia azedarach seed coarse extract on biological activity of rice weevil

苦楝籽粗提物对玉米象生物活性的影响

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。

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。

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。

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。

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。

Observation on population of an active type of Cowpea weevil.

活动型虫口的观察。

Prevention and control of Cowpea weevil.

四纹豆象虫口的制止及防治。

The host range, within which the Cowpea weevil can be destructive, was also investigated, indicating 13 kinds of legumes, oilseeds and grain, among which legume is the one damaged the most severely.

弄清它能危害寄主范围和供试的豆类、油料、粮食等13个品种，其中对豆类危害最严重，也发现对花生仁和小麦的危害。

Biological character of typical and active type of Cowpea weevil.

四纹豆象的标准型与活动型之间生物学特性。