pest

Each year ten percent of the crop is lost to a pest called corn rootworm .

一种叫玉米根虫的害虫每年会让粮食减产10%。

At the same time , this sea-water also kills off the greedy giant apple snail , an introduced pest that feeds on young rice plants .

与此同时海水也杀死了贪婪的巨头苹果蜗牛，这种外来害虫以水稻幼苗为食。

That child is being a real pest .

那个孩子真讨厌。

Several key crops failed when they were attacked by pests .

一些主要农作物由于遭受虫害而歉收。

In the short term , chemical sprays are clearly an effective way to control pests

从短期来看，喷洒化学药品显然能有效控制虫害。

One hundred million rats are killed each year by pest exterminators .

每年灭鼠人员都会杀死1亿只老鼠。

Frogs eat pests which destroy crops and carry diseases .

青蛙吃破坏庄稼、传播疾病的害虫。

He doesn 't spray against pests or diseases

他并不喷药防虫祛病。

They have spent $ 3 million building fences around the National Park to exclude such pests .

为了阻止这类有害动物进入，他们已经耗资300万美元在国家公园周边建造围栏。

He climbed on the table , pulled my hair , and was generally a pest .

他爬桌子，拽我的头发，总之是个讨厌鬼。

The image of the fox as a pest is grossly exaggerated in anecdote and folklore .

狐狸的害人精形象在传闻和民间故事中遭到严重的夸大。

The whole community turned out to wipe out the four pests .

全体居民出动除四害。

Away with all pests .

扫除一切害人虫。

Animal and vegetable pests propagate with extreme rapidity .

动植物病害传播极快。

That man 's a real pest .

那人真是牛皮糖。

The crop failure was due in part to drought and in part to insect pests .

歉收一半儿由于干旱，一半儿由于虫灾。

This is a new subject and needs to be explored in depth . pest , most severe , etc.

这是个新课题，需要深入研究。

White storks feed on locusts and other insects that can become pests if their numbers get out of hand .

白鹳吃蝗虫和其他昆虫，这些昆虫如果数量失控就会变成害虫。

Ogbeh says experts are investigating how to control the pest 's damage and prevent its spread , which has gone largely unchecked until now .

奥贝赫说专家们正在研究如何控制病虫害并控制其传播，而直到现在，该问题还未加以遏制。

Given the moth 's ability also to attack crops like pepper and potatoes , Audu Ogbeh , Nigeria 's minister of agriculture , has warned that the pest may " create serious problems for food security " in the country .

考虑到这种昆虫也可能危害诸如胡椒和土豆等农作物，尼日利亚农业部部长奥杜·奥贝赫警告说，这种害虫可能“对国家的粮食安全造成严重危害”。

The deserts are irrigated with water and crops are no longer eaten by pests .

沙漠得到了水的灌溉,农作物也不会被害虫吃掉。

Many pests are resistant to the insecticide .

许多害虫对这种杀虫剂有抵抗力。

The scientists have also discovered three new viruses within the toad 's DNA , which could be used to control pests .

科学家们还在这种蟾蜍的DNA中发现了三种新的病毒，它们可能被用来控制有害动植物。

Woodpeckers can exterminate insect pests hiding in trees .

啄木鸟能消灭躲在树里的害虫。

At last the owl could stand it no longer , but determined7 to rid herself of the pest by means of a trick .

最后，猫头鹰再也受不了了，决定设计除掉蚂蚱。

Long seen as fluttering pests that make holes in your clothes , scientists now say we have badly misjudged the humble1 moth2 .

长久以来，飞蛾被看作是扑棱着翅膀、在衣服上钻洞的害虫，但现在科学家们说，我们严重地错判了这些不起眼的飞蛾。

They can devastate8 marine habitats , but a recent competition for environmental start-ups in Australia , saw them not as a pest but a delicacy9 .

多刺海胆虫可以破坏海洋栖息地，但在澳大利亚，近期一个为环保创业公司举办的比赛证明了多刺海胆不是有害动物，而是美味佳肴。

The new master was very angry . He said : " These shameless pests steal things and make trouble so devastatingly7 . How could they be tolerated ? "

新主人十分恼火，说：“这些见不得阳光的坏东西，偷窃捣乱得太厉害了，怎么能容忍呢？”

Hardware Design of a Real-time Detection System for Agriculture Field Pests

农业田间害虫实时检测系统的硬件设计

Research on Low Public Hazard Integrated Control Technology of Tobacco Pest

烟草病虫害低公害综合防治技术研究