1.
To rid of vermin.
驱除害虫，消灭害虫
2.
An insecticide designed to kill larval pests.
杀幼虫剂用于杀死害虫幼虫的杀虫剂
3.
Insects which eat crops are pests.
吃庄稼的昆虫是害虫。
4.
Infestation by vermin, especially parasitic vermin.
害虫孳生；寄生虫孳生害虫，尤指寄生虫的侵扰
5.
Are extic pests more easily controlled than indigenous pests?
外杂害虫比本地害虫更容易防治吗？
6.
The key pests and rat include: nematodiasis of the pines and pine moth, forest rats, defoliator of the poplars, bristletail.
二是松毛虫、森林鼠害、杨树食叶害虫等常发性病虫害； 三是小蠹虫、萧氏松茎象等钻蛀性害虫。
7.
Poor: No organized program for insect control. Insects or evidence of their presence found throughout plant.
差：未建立害虫控制的程序，或在厂房内有害虫或害虫的痕迹。
8.
The control effect of a new type of insecticide against stored grain pests and crop pests
一种新杀虫剂对储粮害虫和作物害虫的杀虫效果
9.
The severe frost killed off most of the insect pests.
严霜杀死了大多数害虫。
10.
Chemicals are used for keeping insects down.
化学剂用来控制害虫。
11.
The severe frost kill off most of the insect pest
严霜杀死了大多数害虫
12.
They had killed off the pests by wholesale.
他们大规模消灭害虫。
13.
control of crop insect pests in ancient China
中国古代作物害虫防治
14.
The insecticide will kill off the insect pests.
这情形剂可消灭害虫。
15.
It's difficult to get rid of such insects.
要除去这种害虫很困难。
16.
use chemicals to keep pests down
用化学药品消灭害虫.
17.
Worms attacked the cabbage plants.
害虫侵袭了卷心菜。
18.
Away with all pests...
扫除一切害人虫…。