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harmful insects

harmful insects

harmful insects

harmful insects

1

The cage -typed electric-net insect killer can be used all day long, which can widely trap and kill the crops harmful insects .

这种笼式电网灭虫器能够全天候使用，更为广泛地引诱触杀农作物有害昆虫。

2

the lower bottom is provided with a movable bait box , the bait box is provided with the bait attracting the harmful insects.

下底上有一个活动的诱饵盒，诱饵盒中放置有引诱害虫的诱饵。

3

Instead, they are used to get some insects to come to the plant to help control harmful insects .

而是用于使一些昆虫过来帮助控制害虫。

4

New ways have been found for controlling harmful insects , for preserving food, for packaging, storing and marketing farm products .

控制害虫、保藏食物以及包装、贮藏和推销农产品的新方法发明了。

5

Scientists have found that a crop with a gene that kills pests can leave a poison in the soil that kills helpful as well as harmful insects .

科学家发现，带有抗虫基因的作物能在土壤里留下毒素，这种毒素既能杀死害虫也能杀死益虫。

7

Some insects help us by killing other harmful insects, which damage plants .

有些昆虫帮助人们杀除毁坏植物的其他害虫。

8

It attracts harmful insects which cause disease .

它会引来引发疾病的有害昆虫。

9

Every year they eat billons and billions of harmful insects !

他们每年吃掉几十亿的有害昆虫。

10

Farmers know that if you reduce harmful insects and diseases in your crops , you have a chance for a better harvest .

农民们都知道，如果减少作物中的害虫和疾病，就会提高农作物的收成。

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