studies on the controls of diamondback moth plutella xylostella by complex biological pesticide of bacillus thuringiensisin this study, biological test was performed based on plutella xylostella .

本研究以小菜蛾为试虫进行生物测定，在苏云金桿菌菌株筛选基础上对菌株混用、复配剂配方筛选及其田间防治效果进行了研究。

the diamondback moth larvae preferred leaves of cabbage to false flax in feeding choice test.

在幼虫的取食选择实验中，有甘蓝叶供选择时，小菜蛾幼虫不取食亚麻荠；

the parasitoids of diamondback moth plutella xylostella was unfolded year after year since a series of ecological measurement was taken in shenzhen longgang demonstrate ecological farm.

在生态恢复的深圳龙岗生态示范农场，自然寄生于小菜蛾卵的寄生蜂种类逐年增多。

so, studying the effect on behavior and synthesization of vitellin of diamondback moth are essential for understanding the regulation function of polyamines on the physiological process of insect.

因此，研究多胺在小菜蛾行为及卵黄蛋白合成中的作用，对于进一步明确多胺生理功能，阐明多胺参与昆虫生理过程的机理具有重要意义。

diamondback moth expressed habituation to and induced preference for non-host originated repellents.

小菜蛾可对驱避素产生习惯性反应和诱导嗜好性。

diamondback moth resistance, and temperature range , 10-40 ℃ can survive and reproduce, but the growth temperature for 20-30 ℃.

小菜蛾抗逆性强，适温范围广，10-40℃均可存活并繁殖，但发育适温为20-30℃。

the field control effects of some kinds of the insecticides and the integrated pest management of the diamondback moth in the export-type cabbage were discussed.

评价了几种杀虫剂及复配药剂对小菜蛾的田间药效，探讨有效控制出口型甘蓝小菜蛾的综合治理技术。

methods put brassica oleracea seeding into rearing cage directly, let diamondback moth produce eggs on the seeding, and a new method without larva shift was set up.

方法直接把莲花白幼苗放入饲养笼中，让小菜蛾在幼苗上产卵，而且不用转移卵孵化后的幼虫。

diamondback moth larvae preferred leaves of cabbage to false flax in feeding choice test.

在幼虫的取食选择试验中，有甘蓝叶存在时，小菜蛾幼虫不取食亚麻荠；

the results indicated that:(1) the diamondback moth occurred four generations per year in the zhangjiakou bashang region, but didn't pass the winter.

结果表明：（1）张家口坝上地区小菜蛾的十字花科嗜食寄主植物主要是芥菜、结球甘蓝、油菜、花椰菜、青花菜；