健康的幼虫形成小茧，变成蛹，然后破茧而出，长成幼蜂。
Healthy larvae form small cocoons, become pupae, then emerge as young bees.
是一种独特的昆虫生长调节剂，可有效阻止幼虫到成蛹的正常发育，使苍蝇、昆虫灭绝。
It is a unique pest-nourishing flavoring, it can prevent normal growth from grub to pupa effectively, then die out the flies and other insects.
对于不同的生活史阶段，豆荚野螟卵、1～4龄幼虫、蛹及整个世代受温度影响显著；
The stages of egg, larva of instar 1 to 4, pupa, and the whole generation were influenced greatly by temperature.
卵、幼虫利蛹的历期有待进一步研究。
幼虫和蛹的空间分布均为聚集分布。
The spatial distribution patterns of larvae and pupae are congregating distribution.
研究结果表明，疑山郭公虫对树干内纵坑切梢小蠹幼期（幼虫和蛹）的捕食率大体为10.6%。
This study demonstrated that the clerid preyed 10.6% of larvae and pupae of Tomicus piniperda living beneath the bark.
通过利用传统生物学统计方法和地统计学方法，得出其卵、幼虫和蛹的空间格局均为负二项分布，即聚集分布。
The spatial pattern of egg, larva and pupa are all the aggregated distribution by analysis with the traditional biostatistics and geo-statistics.
所有被寄生的幼虫均不能化蛹。
大幼虫和蛹的分布型均符合负二项分布。
Frequency distribution of each type of large larvae and cocoons conformed to negative binomial distribution.
室内研究了饲料种类、饲养密度对黄粉虫幼虫生长速度、死亡率、化蛹率和虫体营养成分的影响。
This paper focused on the larva growth rate, mortality, pupation rate, nutritional component of Tenebrio molitor L.
不幸的是， 95 ％的跳蚤由跳蚤卵、幼虫和蛹组成。
Unfortunately, 95% of a flea population consists of eggs, larvae and pupae .
结果表明，工蜂幼虫、蛹在提高机体免疫功能方面，与蜂王幼虫有同样的药理作用。
The results showed that worker honey bee larvae and pupae had medical value in raising immune function of organism as high as queen bee larvae.
麦鼓的颗粒细度适当变小，有利于幼虫的个体发育、平均蛹重的提高。
The fit declining would help the development of the individual larva and improve the weight of average papue.
利用寄生性天敌花绒寄甲防治天牛幼虫和蛹是主要的防治技术，前景广阔。
It was the main techniques in future to control the larvae and pupa by parasitoids of Dastarcus helophoroides.
纤维或类似纤维材料的保护壳，由蛾或其他昆虫的幼虫做成，作为其蛹阶段的覆盖物。
A protective case of silk or similar fibrous material spun by the larvae of moths and other insects that serves as a covering for their pupal stage.
测定了不同温度下莲雾毒蛾各虫态的存活状况，并就卵孵化率、幼虫存活率、蛹羽化率、产卵量和种群趋势指数等指标与温度的关系进行相关性分析。
The regression equations of the rates of hatching, larvae survival, emergence, the egg number laid by a female and population trend indices against temperatures were analyzed.
正在养肥的幼虫变成有趣的毛虫，然后产生了一个坚固的保护壳裹在它们周围这样就进入了蛹的阶段。
Fattening larvae become juicy colorful caterpillars then create a hard protective case around themselves as they enter the pupa stage.
结果表明，不同虫态及虫龄的多酚氧化酶活力有很大的不同，其中以5龄幼虫酶活力最高，蛹酶活力最低。
The enzyme activity of the 5th instar was the highest and that of the pupa was the lowest.
实验种群中初期死亡率较低，5龄幼虫和蛹的死亡率较高。
In experimental populations, mortalities of the 5th instar larvae and pupae were higher than those of instars at initial stages.
幼虫在不同寄主植物上取食危害的症状不同，其化蛹部位也不同。
The injury symptom of leaves caused by larvae varied with host plants, and the pupation site was different depending on the host plants.
卵、幼虫和蛹的发育历期均长于敏感品系且差异显著；
The developmental duration of eggs, larvae and pupae were longer than that of susceptible strain and the difference was significant.
被寄生的幼虫取食量较未被寄生的显著增加，但均不能正常化蛹。
The parasitized larvae had consumed more food than the healthy ones, but the former could not pupate.
方法将蚊卵分别放人不同盐度的水中孵化；观察不同盐度水中卵的孵化率、幼虫成活率及成蛹情况。
Methods the mosquito eggs were set into the different salinity water and the hatch percentage of eggs, the growth of larvaes and the number of pupas were recorded.
蛹生的产出能够 化蛹且发育良好的幼虫。
Producing well-developed young that are ready to pupate. Used of an insect.
幼虫的存活和化蛹率随幼虫饮水后体重的增加而增加。
The survival and pupation rates of the larvae increased with increase of larval weight because of water drinking.
在变态发育期间，中肠上皮经历了广泛的重组，由再生细胞重新形成的蛹上皮替代了幼虫上皮。
During metamorphosis, the larval midgut epithelium degenerated and the pupal epithelial cells due to differentiation of larval regenerative cells replaced the larval epithelial cells.
瑞香狼毒对菜青虫的生长发育有较大影响，抑制幼虫发育，并使由其发育成的蛹及羽化出的成虫畸形；
The experimentation on the growth and development showed that the SCNE had significant good inhibitory effects, with the most malformation of the prepupa, the pupae and the mature.
本论文在原有研究基础上，对橘小实蝇人工大量饲养技术进行了优化，包括：幼虫人工饲料、成虫饲养密度、成虫性比和蛹的低温保存。
This paper was mainly to research on the standard of the quality control of mass rearing Trichogramma with artificial host eggs.
本论文在原有研究基础上，对橘小实蝇人工大量饲养技术进行了优化，包括：幼虫人工饲料、成虫饲养密度、成虫性比和蛹的低温保存。
This paper was mainly to research on the standard of the quality control of mass rearing Trichogramma with artificial host eggs.
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