幼虫的

The paper described how the leaves of Brasenia schreberi Gmel., an economic aquatic plant and a Chinese favourite dish, were destroyed by the Chironomid larvae, especially those of Cricotopus trifasciatus panzer, and the characteristics and their growth environment of that species were introduced in detail as well.

莼菜为长江中下游地区民众喜爱的菜肴，具有较高的营养价值。本文重点叙述主要危害莼菜的三带环足摇蚊Cricotopus trifasciatur幼虫，记述了这种幼虫的特征和生长环境以及这类幼虫危害莼菜的过程和结果。

Based on the spatial temporal characteristics of interaction of pine caterpillar larvae population,a three dimensional correlogram and spatially mixture regression model was proposed.

对马尾松毛虫幼虫密度分布的预测采用了时空自回归加时空趋势面的形式，预测的马尾松毛虫幼虫的平均密度和实测的平均密度在时空变化的趋势上是完全一致的，而且预测结果给出了马尾松毛虫幼虫密度分布的图象形式，给防治决策提供了方便。

The contents of protein,amino acids,fat and fatty acids of the Herse bilineata tsingtauica are analysed to find out the nutritive value.

对豆天蛾幼虫的粗蛋白、氨基酸、粗脂肪、脂肪酸含量进行了测试分析，结果如下：幼虫粗蛋白含量为65。

Objective According to the different breeding condition on the Musca domestica larvae,to investigate the methods of artificial breeding.

目的用不同饲养条件饲养家蝇幼虫，研究人工饲养家蝇幼虫的方法。

The hatching condition of the eggs,the feeding behavior,the duration and damage characteristics of the larvae,the pupation position and the habit of adult of P.melete were studied by the habitat investigation and the laboratorial rearing observation.

方法通过生境调查和室内饲养观察研究黑纹粉蝶卵的孵化情况，幼虫的取食行为及幼虫的历期，幼虫的危害特点，化蛹的部位，成虫的习性等。

To test the toxicity of spore-crystal formulation of HBF-1 specific to larvae of several main scarabaeid species in North China, Bacillus thuringiensis suspensions mixed with sterilized fine soil containing potato pieces were used for feeding the larvae. The LC50 of HBF-1 crystal-spore powder to Popillia quadriguttata, Anomala exoleta, A. mongolica, A.

以我国筛选出的对金龟科幼虫具有杀虫活性的HBF-1菌株为供试菌株，采用菌悬液与含有土豆丝的土壤混合饲喂幼虫的方法，测定了HBF-1菌株孢晶粉剂对华北地区主要金龟子幼虫的毒力，其敏感性依次为四纹丽金龟Popillia quadriguttata，黄褐丽金龟Anomala exoleta，蒙古丽金龟A.mongolica，铜绿丽金龟A.corpulenta和苹毛丽金龟Proagopertha lucidula，LC50为3.104，18.987，30.924，34.713和55.995 μg/g土。

When transgenic rape leaves were fed to Plutella xylostera, mortality of second instar larvae ranged from 33％ to 47％ and the survival larvae had a less weight than the control.

对叶绿体转化植株进行虫试，结果表明，8天后小菜蛾幼虫的死亡率为33％-47％，未死亡的幼虫比对照体重减轻。说明所获得的叶绿体转基因植株具有杀虫和抑制幼虫生长的作用。

The assay of the coarse protein , a variety of amino acid about nematode-trapping fungus — Arthrobotrys oligospora strain A1 and the third stage larva showed that the contents of the coarse protein and a variety of amino acid of larva are mostly higher than that of predacious organs containing annulus and cohesive net ,conidia and hypha in the different growth phases.

捕食线虫性真菌——少孢节丛孢菌菌株及线虫第三期幼虫的粗蛋白质和各种氨基酸种类及其含量化学成份测定结果表明：捕食线虫性真菌—少孢节丛孢菌的各生长阶段和线虫幼虫的粗蛋白质和氨基酸的种类和含量比较显示：线虫幼虫的粗蛋白质和各种氨基酸的含量大多数都高于少孢节丛孢菌捕食器、分生孢子、和菌丝的含量；结果还说明：捕食器菌丝的化学组成也与普通菌丝不一样。

The larvae on different development stage indicated different sensitivity to reactive oxygen species, the napuli VI showed the most sensitive. 2 Antioxidants could decrease the damage effect of reactive oxygen species on larvae in certain level.The addition of antioxidants in culture system had risen larva suvival rate and the metamorphosis rate of cyprid .

外源抗氧化剂的加入在一定程度上减弱了活性氧对东方小藤壶幼虫的伤害作用，从而提高了幼虫的存活率和变态率；在减弱活性氧对东方小藤壶幼虫的伤害作用中，不同类型的抗氧化剂对不同类型的活性氧所起的作用大小不同。

Cantly greater numbers of living larvae were found in sugar maple than in the other tree species; however,more were found in red oak and fewer in green ash than expected,considering relative numbers of oviposition sites. After 90 d,mean mass of living larvae did not differ signi?cantly among tree species.

然而，考虑到产卵点的相关数量，我们在红橡树上发现的活的幼虫的量要比预料的多，而在白蜡树上发现的幼虫的量则没有预料的多。90天后，在这些树种上平均幼虫总量已经没有显著的差异了。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。