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The activities of stomach and contact poison of the fermentation extracts of 39 strains were tested against the 3th instar larvae ofMythimna separata at the concentration of 500 u g/ml.

以粘虫为供试昆虫,在500μg/ml的浓度下测定了39株内生真菌发酵产物粗提物的胃毒和触杀活性。

Foliage from winter wheat fumigated with SO2 were fed to the larvae of the army worm, Mythimna separata in order to investigate the effect of SO2 on this species of insect.

用低浓度SO_2熏蒸过的小麦饲养幼虫,研究SO_2污染对粘虫生长的影响。

Total RNA was isolated from the forth instar larvae of the armyworm,Mythimna separata Walker.An α and a β tubulin cDNA sequences were cloned by RT-PCR and rapid amplification of cDNA ends.

以黏虫4龄幼虫为材料提取总RNA,利用RT-PCR和cDNA末端快速扩增技术,分别扩增得到该虫的α和β微管蛋白基因的cDNA序列各1条。

The fumigation effect of the essential oil with and without HCN of bitter almond on insects was studied. The results show that the two kinds of bitter almond oil have strong fumigation activity against Musca domestica vicina, Aedes albopictus and Mythirmna separata. It is have the characteristic of low effective concentration and quick response.

通过含有HCN和去除HCN的苦杏仁精油对四种试虫的熏蒸杀虫活性,表明含有HCN和除去HCN两种苦杏仁精油对家蝇、白纹伊蚊以及粘虫均具有很强的熏蒸杀虫活性,具有作用浓度低、作用时间快的特点。

Flight behavior of the oriental armyworm Mythimna separata moth in airflow was studied systematically using wind tunnel and scanning entomological radar.

通过改进悬吊测飞技术、室内风洞和野外雷达相结合的观测方法,研究了粘虫在气流场中的飞行行为特征及其与气流的关系。

Since genomic DNA of high quality is a crucial prerequisite for molecular ecology studies, we specially detected efficient protocols to isolate high-quality genomic DNA from ethanol-preserved Pseudaletia separata adults of several natural populations trapped by light traps in fields of different areas.

高质量的基因组DNA样品是分子生态学研究的先决条件。

The study suggested that the optimal method not only enhanced the affinity and the maximum reaction velocity of α-amylase with its substrate, but also improved the accuracy and the sensitivity on the activity of α-amylase from M. separata larvae in assays, whereas it was not the optimal method for determining the activity of α-amylase from T. molitor, C. pipiens pollens and M. domestica larvae.

结果说明,在该优化体系下,粘虫α-淀粉酶与底物的亲和力增强,最大反应速度增大,测定酶活性的准确性和灵敏度显著提高;同时该优化体系也可作为测定德国小蠊α-淀粉酶活性的优化方法,但不适合作为黄粉虫、淡色库蚊和家蝇α-淀粉酶的最优化测定方法。

Separata is higher than H. armigera. 130kD Bt pro-toxin is decomposed by mid-gut juice in 37℃ and 30min and 60 min , 60kD toxin can be got by H.

Bt CrylAcE毒素为许多分子量约为60kD的毒性肽组成,且各组分均具有生物活性,而非某一种组分单独起毒杀昆虫的作用。

The results from bioassay showed that both the capsules of PuGV-Ps and the partially purified synergistic factor enhanced infection of Pseudaletia separata nuclear polyhedrosis virus in the larvae of armyworm significantly.

生物测定的结果表明,粘虫颗粒体病毒PuGV-Ps及其增效因子对粘虫核型多角体病毒PsNPV均有明显的增效作用。

Separata was significant under the concentration of over 1.00 mgmL^(-1), and showed dosage-dependant pattern. The highest antifeedant rate was 65.68 %. Which concentration is within 0.25~1.00 mgmL^(-1), the feed intake of the 4th instar larvae of M.

浓度大于1.00mgmL^(-1)的羟基马桑毒素对3龄粘虫幼虫有明显的拒食作用,且随着药剂浓度的增大,拒食作用增强,最大拒食率达65.68环。

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