| 1. | Peculiarities in the silkworm are known to appear at the corresponding caterpillar or cocoon stage . 蚕体的性状,亦限于相当的幼虫期或蛹期出现。 |
| 2. | Can be easily ingest from zoea to post larva stage 可自眼幼虫期开始给饲。 |
| 3. | 1 . it is very specific for the young larvae to cure digestive system disorders at the stages of zoea 1 .治疗眼幼虫期拖粪期的消化不良特效。 |
| 4. | ( 3 ) euthalia kardama : univoltine . they overwinter in elder larvae in the old leaves of palms in late october 9月至10月为幼虫期, 10月底以幼虫在棕搁树棕中越冬。 |
| 5. | The natural enemies of larvae include spiders , earwigs , wasps , bugs and birds , and pupa ichneumon 卵和幼虫期的天敌主要有:蜘蛛、蠼螋、胡蜂、猎蝽、鸟类,蛹期天敌为姬蜂、鸟类。 |
| 6. | Apply once every two day at night , 2 - 5 ppm each time , from zoea stage continue till transfer of larvae fish to growing pound 两天一次, 2 - 5ppm于夜间实施,从眼幼虫期一直使用到可供放养的虾苗。 |
| 7. | At 27 - 29 , the process needs about 50 hours . at 21 - 22 degrees the process needs approximately 110 hours . after molting for the sixth time , the larva enters the zoea stage 无节幼虫虫随著脱皮体形渐大,共有六期,第一期到第六期所需时间依水温高低有所不同,通常在27 29之下约50小时, 21 22之下则约需110小时,于第六次脱皮后即进入眼幼虫期zoea stage 。 |
| 8. | Natural enemies of hyphantria cunea ( drury ) were investigated in qinhuangdao , hebei province . two parasitoids in larva stage , 12 parasitoids in pupal stage and 2 predators ( coccinella septempunctata and tenodera sinensis ) were found 摘要通过对美国白蛾各个发育期的天敌进行调查与研究,发现除了捕食性天敌七星瓢虫、大刀螳螂等外,幼虫期有2种寄生性天敌、蛹期有12种寄生性天敌,这为保护和利用天敌、有效控制美国白蛾提供了依据。 |
| 9. | It contained 187 amino acids deduced from the nucleotide sequence , and showed 65 % amino acid sequence identity with human aoeb166 . the analysis of n - and c - terminal domains revealed amino acid sequences characteristic of features of mitochondrial and peroxisomal targetin 原位杂交分析表明从受精卵到神经胚, aophihmgb基因广泛表达,但随着发育的进行,中胚层、内胚层和神经管的表达减弱,到1天幼虫期,仅在表皮可检测到表达。 |
| 10. | Female lays its eggs hi mid - june and eggs will hatch in 20 days , larvae feeding on aristolochia kaempferi from late june to mid - september ( about 50 - 55 days ) , five instars . from mid - august , larvae become pupae in tree branches or brushes with changeable color based on background 幼虫期从六月下旬到九月中旬,幼虫五龄,历期50 - 55天,取食异叶马兜铃,八月中旬开始老熟幼虫在灌木、树枝上化蛹,蛹的颜色随化蛹时背景颜色变化,九月上旬为化蛹盛期。 |