If you have either, you're paying to keep the soybean aphid away from the crop that feeds cattle and pigs.

如果你有二者之一，你要为防止大豆蚜虫侵害饲养牛和猪的作物而买单。

So can the movement of aphids when, having depleted the young leaves on one food plant, their offspring then fly onward to a different host plant, with no one aphid ever returning to where it started.

蚜虫的运动也是如此，当吃完一株食用植物的幼叶，它们的后代会飞到另一株宿主植物上，没有蚜虫会再回到最初的地方。

Surely you've heard about the Aphid Genome Project.

你一定听说过的蚜虫基因组计划。

The aphid eat green grass, the false eats soul.

蚜虫吃青草，虚伪吃灵魂。

The reproduction rate of the aphid is influenced by nutrition.

蚜虫的繁殖率受到营养的影响。

Researchers found evidence in a tiny insect called the pea aphid.

研究人员在一种称为豌豆蚜虫的小昆虫哪里发现了证据。

The aphid is now laying waste to the wheat and barley fields.

蚜虫正在毁掉一片片的小麦和大麦田地。

The aphid colonies grow inside galls, abnormal outgrowths on plants.

蚜虫通常群居于植物虫瘿内（由于昆虫产卵寄生引起的异常发育部分）。

Making method and skill of glass specimen of aphid were introduced.

介绍了蚜虫玻片标本的制作方法与技巧。

In general an aphid cannot or hardly identify its host at a distance.

在一定距离以外，蚜虫通常不能或难以识别其寄主植物。

Proposals on further research to plant killing aphid are put forward.

并对杀蚜植物进一步研究应注意的问题提出了建议。

Applying mixed fertilizer can also improve cotton's aphid resistance.

施混合肥也能提高棉株的抗蚜力。

The aphid possess positive taxis to golden and negative taxis to silver grey.

蚜虫对金黄色具有正趋性，对银灰色具有负趋性。

And it's bad for one species to be responsible for aphid control with no backup.

而且，只有一个物种负责蚜虫控制而没有替换物种也很不妙。

There is adequate variability in plants to breed for resistance to certain aphid vectors.

植物有充分的变异性可用于培育对一些蚜虫介体的抗性。

There are many publications in China and abroad on the progress in aphid alarm pheromones.

国内已有使用蚜虫报警信息素方法的成果发表。

There was high homology of amino acid sequence between the cotton aphid and other insects.

由棉蚜该片段推导的氨基酸序列与其他昆虫的同源性较高。

Nutritive condition is the key factor to influence population and differentiation of the aphid.

营养条件是影响桃瘤头蚜田间数量及分化的关键因素。

Rothamsted Research, home to the Broadbalk experiment, has been tracking aphid infestations for 50 years.

洛桑研究院的Broadbalk实验，五十年来一直在跟踪蚜虫的侵扰。

Since aphid population may become resistant to organophosphorus compounds, avoid excessive spraying.

因为蚜虫类对有机磷化物能产生抗性，所以要避免过多的喷洒。

Scientists at Rothamsted Research have been monitoring the flying form of all aphid species for 42 years.

科学家在洛桑的研究一直在监测的飞行形式的所有蚜虫物种42岁。

He used aphid fecundity data to elucidate the theoretical effects of antibiosis on insect population dynamics.

他利用蚜虫繁殖力资料说明了抗生作用对虫口动态的理论效应。

The mutation from DAG to DTG resulted in low transmission efficiency, even loss of the transmission ability by aphid.

结合前面的序列比对得出结论，DAG基序突变为DTG能使病毒的蚜传活性大大降低，甚至丧失。

Seven-spotted ladybugs are native to Europe but were brought to North America in the mid-1900s to control aphid populations.

七星瓢虫原产欧洲但为了控制蚜虫的数量于1900年期间被引入到北美。

Anyway, Moran sat down at her computer and looked through the aphid genome for the genes that are responsible for carotenoids.

无论你听说过没有，现在，莫兰正坐在她的电脑前，研究蚜虫基因组的资料，查找负责类胡萝卜素的基因。

Several other herbicides, including amitrole, barban, dicamba, and MCPA, alter aphid populations on treated hosts plants.

另一些除草剂，包括杀草强、燕麦灵、麦草畏和MCPA，都能够改变处理寄主上的蚜虫群体。

The result was as follows: (1) The year trend of cotton aphid intimidated by natural enemy is pictured with a three cubed polynomial.

研究结果认为：(1)天敌胁迫下的棉蚜的年趋势可以用一个三次多项式来拟合。

A new insecticide bioassay target, green peach aphid, its rearing and several different bioassay methods were introduced in this paper.

介绍了一种新的生测筛选靶标桃蚜的室内饲养方法及几种不同的生测方法。