草地螟

本文即在构建草地螟中肠cDNA文库的基础上，利用围食膜蛋白的多克隆抗体免疫筛选来获得编码相关基因，并进行了初步的分离与鉴定。

Based on the constructed cDNA library of the meadow moth midgut , we used PM proteins polyclonal antibody to isolate and characterize the related coding genes .

饥饿2d后饲养的草地螟成虫在产卵量、孵化率较其他处理组更高，而清水组和不饲养组的草地螟的产卵量和孵化率都是极低的。

The meadow moth feeding after consecutive starvation for two days has higher scores on the fecundity and hatching rate of the female adults , and the control groups which are feeding on water or starving are quite low .

草地螟迁飞活动的雷达观测

An observation on the migration of meadow moth by radar

我国草地螟的暴发具有稳定的准20年的周期。

Meadow moth outbreak in China has a quasi-stable cycle of 20-years .

草地螟成虫监测及防治技术研究

Study on Supervision and Control of adult Beet Webworm

蒸发量对向日葵草地螟发展一直有抑制作用。

Evaporation showed some refrains to the development of the sunflower loxoszege stictialis .

主要研究结果如下：1.草地螟迁飞规律。

The major findings are as follows : 1 .

草地螟越冬代成虫生物学特性及控制技术研究

Studies on biological characters and control techniques for hibernate adult of beet webworm

山西草地螟发生预测模糊近似推理模型

A Fuzzy Approximate Reasoning Forecast Model for the Grass Moth in Shanxi Province

草地螟越冬代虫量与第一代草地螟发生关系的研究

Relationship between the overwintering generation and the first generation of the beet webworm

草地螟发生区存在洲际间转移的现象。

Occurrence areas of meadow moth have intercontinental shift .

草地螟是一种世界性害虫，分布在欧、亚大陆和北美洲。

Is a worldwide pest , distributed in Europe , Asia and North America .

草地螟滞育性的研究

Studies on diapause of beet webworm

目前人们对草地螟的发生规律尚缺乏全面了解。

To date , the comprehensive understanding of the occurrence of meadow moth is still limited .

结果表明：草地螟盛发期东北地区大气环流和天气系统对草地螟的迁入和扩散有密切的关系。

The research results indicate that weather system has notable effect on the migration of meadow moth .

俄罗斯欧洲部分草地螟的暴发周期则存在年代际变化。

The outbreak cycle of meadow moth in the European part of Russia changes between decades . 8 .

降水、下沉气流、气流辐合区、冷锋锋面会导致草地螟集中降落。

Precipitation , atmospheric subsidence , air convergence , and cold front will lead convergent landing of meadow moth .

同时，利用气象资料和对应的草地螟发生发展观测资料建立了预测模式。

The forecasting model was build up by using the weather data and observed data of the occurrence and development on the loxoszege stictialis .

据此提出今后要搞好草地螟长期预报，必须跟踪观察各代幼虫越冬的比率和面积大小。

To put forward long term forecasting , investigation on emergence amount and total distribution area of over winter larva of meadow moth is necessary .

另外还发现，东北地区草地螟种群崩溃与大火山喷发存在密切关系。7.近百年来欧亚大陆草地螟种群时空动态。

In addition , the collapse of the meadow moth population in Northeast China is found to be closely related to volcanic eruption . 7 .

同时，也揭示了近年来我国草地螟主要发生区一代幼虫滞育比例下降的主要原因及其与种群大发生之间的关系。

Simultaneously , we explained the reason of the diapause rate decreasing for the first generation larvae in main occurrence region of China in recent years .

结果表明，草地螟空中虫群的成层行为是对温度和风速综合作用的响应。

The results show that the layer formation of meadow moth in the air is a response to the combination of effects of temperature and wind speed .

本文分析了1999年各地草地螟主要迁入峰期的天气学背景，并对风场的时空分布及草地螟迁飞轨迹进行了模拟。

We analyzed the weather background during the major immigration period in 1999 , and stimulated temporal-spatial dynamics of wind field and migration trajectories of the meadow moth .

如果虫源区位于森林草原带上，由于6月、8月的低温是草地螟繁殖的主要制约因素，因此气温波动将促使成虫迁出。

If the source area locates in forest-steppe , since the low temperature in June and August is a major constraint for meadow moth , temperature fluctuations will promote emigration . 5 .

草地螟在长沙地区草坪越冬基数很小，在长沙地区为害的多为外地迁入的虫源，为害程度主要取决于异地越冬代成虫迁入量的多少。

The over-winter cardinal number of meadow moth was very small in lawn in Changsha area , and they were a number of meadow moths coming from other places , not from the Changsha area .

在气候异常的情况下，华北草地螟夏季种群亦能出现远距离迁飞的现象。

Under abnormal climatic conditions , the summer population of meadow moth in North China may take long-distance migration . ( 4 ) Meadow moth staying in North China has atypical migration cycle between generations .

东亚荒漠带及草原带南部的积温可以使其完成两个世代，但严重干旱限制了草地螟的发生。

The accumulated temperature in East Asia desert and south part of steppe is high enough for meadow moth to complete two generations , but the severe drought has limited the occurrence of meadow moth .

具体结果为：鼠李糖饲养的草地螟成虫在产卵量、成虫寿命以及卵孵化率等方面明显较其他8种糖类低。

The detailed results show that the meadow moth which feeding on rhamnose exhibits lower physiological parameters among the fecundity , lifespan and hatching rate of the female adults than the other eight treatment groups .

幼虫密度对草地螟个体发育也有显著影响，密度20头/瓶时幼虫和蛹的发育历期显著最短，其他密度的幼虫和蛹历期随着幼虫密度的增加而显著延长。

The larval development was also significantly affected by density . The development time of larvae and pupae at the density of 20 larvae jar was shortest , while it significantly prolonged with the larval density increasing .

迁出种群大部分向东北方向迁飞，途经丰宁等地时发生了迫降，迫降是由强下沉气流引发的。（3）归纳了草地螟起飞、降落、远距离迁飞的天气背景。

Most of the emigrating population flew northeast and landed involuntarily in Fengning County due to the atmospheric subsidence . ( 3 ) The weather background for taking-off , landing , and long-distance migration of meadow moth are summarized .