玉米螟

The values of AFC50(media antifeeding concentration)at 24h on the 3rd instar larvae of Ostrinia furnacalis was 3408.31μg/ml, according to 2275.22μg/ml of media azedarach.

结果表明：蟛蜞菊4个不同部位中，以花的甲醇提取物拒食效果最好，24h对亚洲玉米螟3龄幼虫的AFC50为3392.28μg/ml，对照印楝为2228.72μg/ml。

But the loss of yield and the lowering of quality are more and more obvious for corn borer.

然而，由于玉米螟危害造成产量损失和品质下降日趋严重。

Chemical identification of ODPs from extracts of larval frass,egg masses and midgutThe major ODPs of the extracts from larval frass,egg masses and midguts of O.furnacalis and O. nubilalis fed on an artificial diet were identified by GC and GC-MS.

玉米螟幼虫粪便、卵块及中肠提取液中产卵忌避信息素成分鉴定采用GC和GC-MS方法测定了两种玉米螟取食人工饲料后幼虫粪便、卵块，以及人工饲料和幼虫中肠提取液中的主要化学成分。

In this laboratory experiment, green lacewing caterpillars proved more likely to die after eating European corn-borer caterpillars that had fed on Bt corn instead of regular corn.

研究是在实验室中进行的，科学家以玉米螟幼虫喂食蚜狮幼虫，发现吃 Bt 玉米长大的玉米螟会使蚜狮死亡，而普通玉米则否。

The results indicate that female wasps deposit HMPs on the chorion of host eggs with her ovipositor near the end of egg-laying process. Na ye females do not posses the ability for recognizing the marking pheromones and have to obtain the ability though the learning process, in which the wasp inserts her ovipositor into a host egg to determine whether the egg has been parasitized followed by antennal drumming on the exterior. Once the learning process is completed, the female wasp will be able to discriminate between parasitized and unparasitized hosts and reject a parasitized egg by simply drumming on the exterior of the egg. Learning plays an important role in reducing initial rejection time when an unsuitable host is encountered. Female wasps of T. astriniae can quickly learn to associate the presence of a HMP on host egg chrion with the internal status of the egg.

研究结果表明，玉米螟赤眼蜂的寄主标记信息素是在其产卵过程中的收场阶段由产卵器产生的，并且标记在寄主卵表的化学物质；玉米螟赤眼蜂对标记信息素的识别不具有先天性，其必须先用产卵器插入寄生卵来检测是否被寄生，然后其触角不停地敲击，通过学习获得对标记信息素的识别能力，从而放弃了对寄生卵的选择，学习对初始放弃时间有着重要影响，改善了其对寄主搜索效率，这种学习行为是与寄主联系在一起学习的，它能根据寄主被寄生与否而对标记信息素作出反应与不反应。

The Asian corn borer,Ostrinia furnacalis(Lepidoptera:crambidae) and the European com borer,O.

亚洲玉米螟和欧洲玉米螟是棉花和玉米的重要害虫之一，给农业生产造成巨大的经济损失。

In order to the active control corn borer harm, my city big area has promoted the trichogramma preventing and controlling corn borer technology, the effect was extremely remarkable, obtained the general farmers friend ' s approval.

为了有效控制玉米螟的危害，我市从1995年开始推广人工施放赤眼蜂防治玉米螟技术，效果非常显著，得到了广大农民朋友的认可。

By 6% PAGE, it was found that there were two kinds of diapause-associated proteins(pI 5 3,4 7) in the hemolymph of diapausing larvae from Henan population and one kind of DAP(pI 4 7) in the hemolymph of diapausing larvae from Shanghai population of Ostrinia furnacalis. The DAPs of O.

用6%聚丙烯酰胺凝胶电泳，在亚洲玉米螟Ostrinia furnacalis河南种群滞育幼虫血淋巴中发现了2种滞育关联蛋白，它们的等电点分别为5.3和4.7；而在亚洲玉米螟上海种群滞育幼虫血淋巴中发现了1种滞育关联蛋白，等电点为4.7。

The predict equation of meteorological suitability grade for the occurrence of the first generation of corn borer in Jilin Province was constructed.

利用近26 a来吉林省玉米螟发生的历史虫害资料与气象资料对方程进行检验，并对2007年吉林省玉米螟发生气象条件适宜程度进行预报，效果较好。

Corn borer is the main harmful insect which our city corn produces, each yearly average has the varying degree the occurrence, year to year loses 5%~ about 10%, seriously has the year loss to reach 18%, seriously affects my city corn the output and the quality.

玉米螟是我市玉米生产上的主要害虫，每年均有不同程度的发生，每年由于玉米螟危害造成的损失达5%～10％左右，重发生年损失达18％，严重影响我市玉米的产量和质量。

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。