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1·Plantings of cotton bioengineered to produce its own insecticide against bollworms, a major cause of crop failure, sustained little bollworm damage until this year.

经过生物工程改造的棉花种植场可以生产自己的抗棉铃虫杀虫剂，而棉铃虫是造成农作物歉收的主要原因，直到今年，棉铃虫的危害都很小。

2·By setting up bollworm's data base which strengthen forecast work of cotton bollworm.

通过建立棉铃虫数据库来强化棉铃虫的预测预报工作。

3·There were significant differences among the mortalities of the cotton bollworm under different humidities.

相对湿度发生变化时，感病棉铃虫死亡速度和死亡率明显不同。

4·The spatial site distribution of the plant leaves didn't influence the expression of the resistance to bollworm.

叶片在棉花植株上的空间分布位置不影响对棉铃虫抗性的表达。

5·The total pest controlling input was reduced by 70%, of which the bollworm controlling input was reduced by 90%.

总治虫用药投入减少70%，其中防治棉铃虫用药投入减少90%。

6·It implies that the decreased nerve sensitivity is an important pyrethroid resistance mechanism of cotton bollworm.

这些结果说明神经敏感性降低是棉铃虫对拟除虫菊酯抗药性的重要机制。

7·Electroantennogram responses of female cotton bollworm (Helicoverpa armigera) to several plant volatiles were tested.

测定了棉铃虫(Helicoverpaarmigera)雌蛾对几种植物挥发物的触角电位反应。

8·The simulated results suggest that uncertainty exists in some extent to make long term forecast of the bollworm dynamics.

本文的研究结果说明，对棉铃虫中长期发生态势的预测，存在一定程度的不确定性。

9·The combination of mass media and person-to-person media is the best model of extending transgenic bollworm resistant cotton.

大众传播媒介与人际传播媒介相结合是抗虫棉传播的最佳模式。

10·The pink bollworm, whose larvae winter in the seeds of cotton in the storerooms, may cause a 20per cent loss in ginned cotton.

粉红色螟蛉的幼虫在库房棉花籽中过冬，可能使皮棉减产两成。

(1)cotton bollworm棉铃虫