飞机草提取物对小菜蛾产卵驱避活性的研究。
Studies on Repelling Activity of Extracts from Chromolaena Odorata L. Against Plutella Xylostella l.
采用培养皿法测定小菜蛾绒茧蜂的定向能力。
The orientation of Cotesiaplutella was tested in a Petri dish in the laboratory.
研究了小菜蛾主要捕食性天敌种类及其捕食功能。
This paper researches the main natural enemies of pickles moth and their praying functions.
小菜蛾可对驱避素产生习惯性反应和诱导嗜好性。
Diamondback moth expressed habituation to and induced preference for non-host originated repellents.
另外跳甲取食天数的不同对小菜蛾产卵选择的影响不大。
In addition, SFB feeding on different days has a little influence on DBM's oviposition preference.
跳甲的取食会降低小菜蛾在芥菜上的产卵，但对甘蓝没影响。
SFB's feeding will reduce DBM's oviposit probability on B. Juncea, but has no effect on B. oleracea.
买一个哈罗，小菜蛾，红线，或鼬从自行车经销商，你也会很高兴的！
Buy a Haro, Diamond-Back, Red-Line, or Mongoose from a Bike Dealer, and your going to be happy!
本发适用于防治高抗性的小菜蛾和甜菜 夜蛾，其效果明显高于其单剂使用。
The effect of the composite is obviously higher than the relative single-dose use.
结果表明，这两种药剂对小菜蛾卵的孵化率没有影响，但能大大降低初孵幼虫的存活率。
The results showed that both spinosad and avermectin did not affect egg hatching, but caused substantial mortality of newly-hatched larvae.
亚致死剂量锐劲特处理小菜蛾试虫后，其死亡率随着剂量的升高、观察时间的延长而增加。
After being treated at the sublethal dosages, the mortality of tested insects increased with fipronil concentration and observation time.
丙酮和石油醚提取物对小菜蛾卵的孵化及卵的发育历期没有影响，但有增加初孵幼虫死亡率的作用。
The extracts of acetone and petroleum ether had no effect to the hatching rate and egg development duration, but they were toxic to the newly hatched larvae of Plutella xylostella.
小菜蛾幼虫被寄生后，其4龄发育历期较未被寄生的显著长，且寄生时龄期越大4龄历期延长越多。
The parasitized DBM larvae had prolonged their 4th instar duration obviously, and the later the larva had been parasitized, the longer this extended duration became.
跳甲取食天数的不同只对小菜蛾的蛹重影响差异显著，小菜蛾的蛹重随着跳甲取食天数的增多而降低。
SFB feeding on different days only has significant influence over the pupal weight of DBM, and hasn't any significant influence on the other biological parameters.
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。
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.
试验按跳甲数量和跳甲取食时间设置级别，分别测试了小菜蛾取食面积、生长发育和产卵选择性等参数。
We examined the parameters of feeding area, the growth and the oviposition preference of DBM after setting the levels by the number and feeding time of SFB respectively.
由于小菜蛾的抗性日益严重，使传统的防治方法，如化学防治、农业防治和生物防治难以有效地控制小菜蛾的为害。
The resistance of the pest is increasing severely, which made it difficult to control effectively by traditional control methods, such as, chemical, agricultural and biological methods.
应用灰色系统关联度分析方法，对1991～1995年的5年间影响小菜蛾成虫田间种群数量的非生物因子进行分析。
Using the method of relational grade of grey system, the abiological factor influencing Plutella xylostella population from 1991 to 1995 were analyzed.
在实验室内研究了本地天敌拟澳洲赤眼蜂和外来天敌短管赤眼蜂在不同卵龄和不同空间条件下对小菜蛾卵的寄生和种间竞争。
Parasitizing ability and interspecific competition of Trichogramma confusum Viggiani and T. pretiosum Riley on the eggs of Plutella xylostella (L. ) in the laboratory;
木酢液500倍液混用菜喜1000倍液，可较好地控制小菜蛾的发生与为害，在实际生产中，可以进一步减少农药的使用量。
The Plutella xylostella can be controlled after using wood vinegar 500x combined with spinosad 1000x. The utilization of the pesticide can be reduced in the actual production.
本研究以小菜蛾为试虫进行生物测定，在苏云金杆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。
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 .
所以EPL-1基因在小菜蛾幼虫血淋巴内的转录水平是随着寄生后时间的延长而提高，这与EPL-1蛋白的含量变化动态相一致。
The results showed that the transcription increases gradually after parasitization. The transcription dynamics of EPL-1 gene corresponds to the expression dynamics of EPL-1 protein.
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。
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.
本文以小菜蛾敏感品系为材料进行了对米满抗性品系的选育，发现小菜蛾对米满在筛选7代后产生了15.7倍的抗性，且呈现先缓慢后迅速上升的特点。
The resistance selection revealed that the resistance to tebufenozide increased slowly at first and then speeded up, and reached 15.7 times at the 7th generation.
在免疫激活剂昆布多糖存在下，分别测得小菜蛾幼虫血细胞碎片、血细胞裂解液和血浆的酚氧化酶活性为26.80U, 16.68 U和2.53 U。
When laminarin as an immune activator was present, phenoloxidase (PO) activities in cell debris, hemocyte lysate solution and plasma were measured as 26.80, 16.68, and 2.53 u, respectively.
在免疫激活剂昆布多糖存在下，分别测得小菜蛾幼虫血细胞碎片、血细胞裂解液和血浆的酚氧化酶活性为26.80U, 16.68 U和2.53 U。
When laminarin as an immune activator was present, phenoloxidase (PO) activities in cell debris, hemocyte lysate solution and plasma were measured as 26.80, 16.68, and 2.53 u, respectively.
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