查询词典 weevil

In order to fight the two pests that usually attack cotton in the region, the boll weevil and the cotton leafworm, natural insecticides and biological combat were used.

为了对付棉籽象鼻虫和棉叶蠕虫这两种棉花作物的主要天敌，种植者借助了他们的昆虫天敌和生物手段来解决这一问题。

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。

Cholesterol oxidase is a type of protein that was found to have pest-resistant activity only years ago, its toxity to such sensitive pests as cotton boll weevil is euqivalent to previously found BT.

胆固醇氧化酶基因是近几年才发现的一种抗虫蛋白质，它对敏感害虫——鞘翅目的棉铃象甲的毒杀能力与早期发现的Bt。

Certain beetle species and the boll weevil. To be effective, B.t. must be eaten by insects during

须在昆虫哺养期间，即幼虫阶段，吃进苏云杆菌，最为有效地发挥功用。

The boll weevil, for example, lays its egg inside the cotton cocoon, which leads the cocoon to fall.

例如棉籽象鼻虫，喜欢把卵产在棉茧里，从而导致棉茧脱落。

In 1904 the boll weevil , a small insect that destroys thecotton plant by laying its eggs within it , crossed from Mexicointo Texas . By 1910 it had spread to Alabama .

1904年，一种在棉株上产卵而破坏棉株的微小的昆虫——棉花象鼻虫从墨西哥传进德克萨斯州，到了1910年它已经扩展到亚拉巴马。

After the boll weevil infestation, urban Black workers faced competition from the continuing influx of both Black and White rural workers, who were driven to undercut the wages formerly paid for industrial jobs.

棉铃虫害之后，城市黑人工人面临了来自黑人和白人工人持续涌入的竞争，后者被迫削减以前所从事工作的工资。

Well, that's exactly what the people of Enterprise, Alabama, did on December 11, 1919, when they built a monument to the boll weevil, a tiny insect pest that devastated their cotton fields and forced farmers to pursue mixed farming and manufacturing.

嗯，阿拉巴马州企业市的居民在1919年12月11日，就帮棉子象鼻虫立了一个纪念碑。这种小型昆虫会破坏棉花田，而迫使农人必须要种植其他多种植物，与制造多种农产品。

I had in my cellar a firkin of potatoes, about two quarts of peas with the weevil in them, and on my shelf a little rice, a jug of molasses, and of rye and Indian meal a peck each.

在我的地窖中，我有一小桶的土豆，大约两夸脱的豌豆，连带它们的象鼻虫，在我的架上，还有一点儿米，一缸糖浆，还有黑麦和印第安玉米粉，各一配克。

Methoxychlor,salithion,phoxim,triazophos,Lorsban,tirchlorfon,Marshall,RH5849,chlorfluazuron,cyromazine,imidacloprid and Regentfor controlling rice water weevil using conventional spray method of the recommend concentration,was tested.

按农药田间药效试验准则试验了 12种杀虫剂的常规用量之常量喷雾防治稻水象甲的田间药效。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！