玉米螟

It was supposed that each meteorological factor was linear with the occurrence of corn borer and all of factors were addable.

利用相关法确定影响玉米螟发生的主要气象因子，假设每个气象因子对玉米螟发生程度的影响是线性的，将每个影响因子对玉米螟发生的影响程度相叠加，建立了吉林省一代玉米螟发生的气象适宜程度等级预报方程。

It will take 56 to 63 days for the frist generetion of Asiatic corn borer to develop from egg to larva, pupa, and imago in Dewu region. 7. The primary imperilment period of first gemeration of Asiatic corn borer is shooting stage. And the heading stage, grain filling stage in early sowing corn and belling stage in late sowing cron is disserved by the second generation. The imperilment degree of second generation is more serious than frist generation. 8. The best way for the prevention of black cutworm is to spray on early larva and to trap and kill with poison bait in late larva.

7第一代玉米螟主要为害拔节期玉米，第二代玉米螟主要为害处于抽雄吐丝期、灌浆期的早播玉米和处于大喇叭口期的晚播玉米，第二代玉米螟对玉米的为害程度显著高于一代玉米螟；玉米螟的为害受玉米品种影响较大，自交系苏宁三号的受害程度明显高于其他各品种；植株长势对玉米螟发生为害程度有极显著影响，表现为长势好、生长旺盛的玉米受害重，长势差的玉米受害轻；海拔高低对玉米螟发生为害的影响不大。

The extract from larval frass could trigger EAG responses from both sexes,and the values tested before copulation was different from those observed after copulation.

亚洲玉米螟和欧洲玉米螟幼虫粪便粗提液均能激发亚洲玉米螟雌、雄蛾的EAG反应，且雌、雄蛾在交配前后的感知能力有所不同。

The major components in extracts of larval frass and egg masses of O.furnacalis were fatty acids.In contrast,the major chemicals in extract from larval frass of O.nubilalis were a blend of FAs and fatty acid methyl esters,and those from egg masses of O.nubilalis were FAMEs.

取食人工饲料后，亚洲玉米螟幼虫粪便和卵块提取液中的主要成分为脂肪酸；欧洲玉米螟幼虫粪便提取液中主要成分为脂肪酸和脂肪酸甲酯的混合物，卵块提取液中主要成分为脂肪酸甲酯。

Extracts from larval frass or egg masses at different concentrations could elicit significant higher EAG response from O.furnacalis gravid female than solvent.

不同浓度的亚洲玉米螟或者欧洲玉米螟幼虫粪便、卵块粗提液均能引发EAG反应，但差异不显著。

Dictamnus dasycarps Turcz. also have insecticidal activity to Ostrinia furnacalis, When the concentration was 10g/ml, correct decreased rate reached 92.86%, When the concentration was 0.675ml/g, the correct decreased rate reached 3.57%; Dictamnus dasycarps Turcz. at the range of testing concentration have lower stomach toxic effects to Ostrinia furnacalis.

通过白鲜皮对玉米螟杀虫活性的初步研究表明：白鲜皮对玉米螟表现出很强的拒食活性，在测定浓度范围内其拒食活性均在80％以上，最高可达97.22％。；白鲜皮提取液对玉米螟也有一定的毒杀活性，当浓度为10g／ml时其校正死亡率可达到92.86％，浓度为0.675ml／g时校正死亡率仅为3.57％；白鲜皮在测定浓度范围内对玉米螟的胃毒活性较低，最高才42.86％。

This dissertation dealt with comparing the host-preference in laboratory,searching ability with host plant in cage and greenhouse, crossing relationship amongsome Trichogramma species/strains used to control Ostrinia spp., ovipositon andmating behavior, the dispersal behavior and activity period in daytime, effects ofextracts of corn, mung bean and ECB female scale on searching behavior, functionalresponse, and effect of host eggs stored at low-temperatures on parasitization ofTrichogramma ostriniae. The principal results were summarized as follows

本研究涉及玉米螟赤眼蜂等5种11个品系赤眼蜂对欧洲玉米螟卵的选择性，赤眼蜂在箱笼和温室中对寄主卵的搜索能力，玉米螟赤眼蜂与用于防治欧洲玉米螟的三种赤眼蜂之间的亲缘关系，玉米螟赤眼蜂的产卵及交尾行为，玉米螟赤眼蜂在温室条件下的扩散行为及活动节律，玉米、绿豆及欧洲玉米螟雌蛾鳞片提取液对赤眼蜂搜索行为的影响，玉米螟赤眼蜂的功能反应以及寄主卵的低温储存对赤眼蜂寄生和羽化的影响等，主要研究结果如下

the development period of over-wintering larvae of three voltinisms asian corn borer in langfang,hengshui,fuxin,gongzhuling,shuangyashan,haerbin from resuscitation to pupation was studied. the results showed that the development period was different among the different voltinism groups,and it was same within the same voltinism groups.

通过对廊坊、衡水、阜新、公主岭、双鸭山和哈尔滨6个地区3种化性的玉米螟越冬幼虫复苏后发育至化蛹历期的研究，得出3种不同化性种群间的玉米螟幼虫复苏后发育至化蛹的历期有明显差异，而相同化性种群间的玉米螟幼虫复苏后发育至化蛹的历期无明显差异。

In our country the corn borer is comprised of the Asian corn borer and the Europe corn borer.

玉米螟在我国主要有欧洲玉米螟和亚洲玉米螟，其中亚洲玉米螟在我国是优势种，发生严重，在我国各地均有分布。

The meteorological conditions for the occurrence of corn borer were divided into 5 grades.

将玉米螟发生的气象条件划分为5个等级：1级：气象条件有利于玉米螟大发生；2级：气象条件有利于玉米螟中等偏重发生；3级：气象条件有利于玉米螟中等发生；4级：气象条件有利于玉米螟中等偏轻发生；5级：气象条件不利于玉米螟发生。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。