instar

The old instar larvae can eat 8-10 leaves per day .

老龄幼虫每日可食叶片8-10张。

An experimental report on raising first instar tussah in plastic boxes

塑料盒饲养一龄柞蚕试验

Natural survival rate of eggs and the various instar larvae in different years were also investigated .

并观察了不同年份棉铃虫卵和各龄幼虫的自然存活率。

Protein Databank for Several Tissues Derived from Five Instar of Silkworm

五龄家蚕若干组织器官蛋白质数据库构建

The enzyme activity of different instar of Bombyx mori were determined ;

探讨了家蚕不同龄期幼虫的酶活性；

The results showed that natural elimination mainly took place at younger period , especially at first instar .

调查结果表明，在自然状态下，野蚕的自然淘汰主要发生在小蚕期，尤其是一龄期。

Labor saving techniques for silkworm rearing at the stage of the fifth instar

大蚕省力化饲养技术研究

Adult phototaxis and first instar larva eat rotten organic matter .

成虫有趋光性，初孵幼虫喜食已腐烂的有机质。

A rapid cold hardening response is found in the 3rd instar larvae of T.

发现3龄越冬幼虫具有一种特殊的生物学现象-快速冷耐受。

Growth model of the fifth instar larva of the silkworm Bombyx mori

家蚕5龄幼虫体重增长的数学模型

The toxicity to the larva in 4 instar was decreased obviously .

4龄后幼虫的敏感性降低，LC50值为0.457mg/L，毒力仍然很高。

Approach of feeding additional glucose to the domestic silkworm in the period of sth instar

对家蚕五龄期添食葡萄糖效果的探讨

The relation of first feed time at the fifth instar to mass mounting time and yield of cocoons

五龄饷食时间与盛熟时间及茧产量的关系

Lm-TSP expression profile in different tissues of the fifth instar larvae is analyzed .

分析了东亚飞蝗五龄幼虫不同组织器官Lm-TSP基因表达情况。

Studies on Feeding with Standing Mulberry Shoots During the Fifth Instar of Silkworm

5龄蚕立体条桑育研究

The host selectivity was tested by suppling host larvae with different instar .

通过供给不同龄期的寄主幼虫的方法研究蜂对寄主的选择性。

The 1st ~ 4th instar larvae live on the host body fluid and tissue .

1～4龄以寄主体液和组织为食。

Crystals of the three strains were the main toxic agent to the 1st instar larvae .

对1龄幼虫主要致病因素是晶体。

In addition , injecting chemicals to the trunk is an effective control method to all instar larvae .

同时，树干注药是该虫整个幼虫期较为有效的防治方法。

It represented oviposition experience did not affect host instar selection of parasitoid .

由此得出有寄生经历不影响寄生蜂的龄期选择。

The fifth - instar silkworm larvae were inoculated with the recombinant virus .

将此重组病毒接种5龄家蚕幼虫进行重组蛋白的表达生产。

Second instar nymph only occurred a obviously amount peak in early-June .

二龄若虫仅在6月上旬出现一个明显高峰期。

Timing for field treatment was recommended from peak stage of hatching to larvae before 2nd instar .

防治适期以卵盛孵期至2龄前幼虫为宜。

Significant differences of pupation rates were also observed in the 1st and 2nd instar larvae .

2龄幼虫的化蛹率与对照相比有显著差异，3、4龄则差异不显著；

Acute Isolation and Identification of Cerebral Neurons from the Late Third Instar Larvae of Drosophila Melanogaster

果蝇晚三龄幼虫脑神经元的快速分离与鉴定

40 % oil omethoate in 1000 to 1500 times to control 3rd instar larvae 95 % in control effect ;

用40%氧化乐果乳油机动喷烟防治3龄前幼虫，防效达95%；

The proper temperature for rearing 3rd , 4th and 5th instar larvae was discussed .

此外就3、4龄和5龄幼虫饲育的适宜温度作了探讨。

The 3rd & instar larvae was the key stage , while rain acted as the principal factor .

经分析，3龄幼虫（k4）是关键虫期，降雨是关键因子。

Investigation on the Daily Cocoon Shell Weight at the sib Instar of Silkworm Variety Resources and Its Relative Analysis

桑蚕品种资源5龄1日茧层量的调查及其相关分析

The survival curve indicated that the population decrease uses mainly from egg to lst and 2nd instar .

从种群存活曲线分析得出，影响种群增长的关键虫期为卵至1、2龄幼虫期；