Well, had it not been for the boll weevil, the local economy would have continued its unhealthy dependence on its one crop, one-product economy.

因為如果不是棉鈴象甲蟲，該地區(qū)的經(jīng)濟作物恐怕還會持續(xù)著其不健康的對單一作物一级毛片久久中文字幕不卡、單一產(chǎn)品經(jīng)濟的依賴。

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.

為了對付棉籽象鼻蟲和棉葉蠕蟲這兩種棉花作物的主要天敵国产精品亚洲一区二区欧美激情，種植者借助了他們的昆蟲天敵和生物手段來解決這一問題欧美黄片视屏。

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.

膽固醇氧化酶基因是近幾年才發(fā)現(xiàn)的一種抗蟲蛋白質(zhì)，它對敏感害蟲——鞘翅目的棉鈴象甲的毒殺能力與早期發(fā)現(xiàn)的Bt国产极品黄色。

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

須在昆蟲哺養(yǎng)期間免费人成在线观看网站可下载，即幼蟲階段，吃進蘇云桿菌可以免费在线观看的黄色视频的网站，最為有效地發(fā)揮功用久久精品亚洲精品无码金。

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

例如棉籽象鼻蟲，喜歡把卵產(chǎn)在棉繭里91免费a视频，從而導(dǎo)致棉繭脫落性欧美69式XXXX按摩。

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，一種在棉株上產(chǎn)卵而破壞棉株的微小的昆蟲——棉花象鼻蟲從墨西哥傳進德克薩斯州插一插视频，到了1910年它已經(jīng)擴展到亞拉巴馬成年人网站大全。

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.

棉鈴蟲害之后，城市黑人工人面臨了來自黑人和白人工人持續(xù)涌入的競爭亚洲国产精品色一区二区三区色牛，后者被迫削減以前所從事工作的工資国产成本人h动漫无码亚洲3D。

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，阿拉巴馬州企業(yè)市的居民在1919年12月11日最新99在线拍视频，就幫棉子象鼻蟲立了一個紀念碑中文字幕乱人伦高清视频。這種小型昆蟲會破壞棉花田，而迫使農(nóng)人必須要種植其他多種植物久久黄色视频，與制造多種農(nóng)產(chǎn)品欧美国产精品一页。

After he said it, he let the boll to add a beer.

說完他深深地吸了一口氣，讓酒保加了一杯酒亚韩欧美一区二区在线观看。

I don't much care for Uwe Boll movies .

我很在意不烏韋棉鈴電影色播播网免费播播。