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1·Matrine had broad-spectrum killing pesticide activity to acaridae, Pieris rapae L. and aphid.

苦参碱具有广谱杀虫活性，对叶螨、菜青虫、蚜虫均具有活性。

2·Results have shown that ex - tracts from Pieris Formosa were stable in their toxicity and could be developed further.

试验证明，美丽马醉木提取物在不同环境下均具有十分稳定的毒性，完全具备进一步开发利用的条件。

3·Ronaldo confirmed his difficult relationship not only with the Pieris-born tactician, but with the entire Merengues management.

罗纳尔多证实了他不仅和皮耶·里斯战术家处得不好，而且也和整个美凌格管理层关系不洽。

4·We conducted studies on the stability of toxic ingredients from Pieris Formosa under different re- solvents, temperatures, acid and alkali intensities, lightening and oxidization.

我们对美丽马醉木毒性成份在不同溶剂、不同温度、不同酸碱度和光照及氧化等情况下的稳定性进行了试验。

5·The results showed that Erigonidium graminicola and Theridium octomaculatum were the most important predatory enemies of both egg and larva of Pieris rapae in autumn cabbage fields.

结果表明，八斑球腹蛛和草间小黑蛛是秋甘蓝田菜青虫卵和幼虫最重要的捕食性天敌。