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1·Exotic insect pests can produce both short-and long-term effects on forest ecosystems.

外来害虫可以对森林生态系统产生短期和长期的影响。

2·Scientists have made genetic modifications to cotton to increase its resistance to insect pests.

科学家对棉花进行了基因改造，以增强其对害虫的抵抗力。

3·According to farmers' report, the amount of insecticide needed per acre to control insect pests was only slightly lower for those who tried the modified seed than for those who did not.

根据农民的报告，试验转基因种子的人与没有试验的人相比，每英亩用于控制害虫的杀虫剂用量只是稍微少一点。

4·Grain storage of insect pests.

贮藏谷物的害虫。

5·They are highly destructive insect pests.

他们是破坏性极大的有害昆虫。

6·Blaustein: We would have a heck of a lot more insect pests around.

布劳斯汀：我们身边会多出许多许多害虫。

7·Birds are natural enemies of insect pests of human bird friend.

鸟是害虫的天敌鸟是人类的朋友。

8·Corn is attacked by a number of plant parasites and insect pests.

玉米受到一些植物寄生虫和虫害的侵害。

9·In exchange, they enrich the soil, pollinate flowers, and gobble up insect pests.

作为交换，他们丰富的土壤，花授粉，并吞噬害虫。

10·The future of bio-control technology of crops diseases and insect pests was prospected.

展望了农作物病虫害生物防治技术的发展前景。