instars
英
美
abbr. 信息存储和检索系统
双语例句
- The results indicated that the living bristlegrass was better than rice in feeding Chinese rice grasshopper before 3rd instar, but it was conversed for the subsequent instars.
试验结果表明3龄前饲以活体狗尾草优于水稻，而3龄后则相反。 - Effects of temperature and moisture on egg hatching and the second instars of Meloidogyne incognita
温湿度对南方根结线虫卵孵化和二龄幼虫的影响 - There were not determined sensitive stages of larval diapause induction by short photoperiod, but the population was more sensitive in 2 and 3 instars.
短光周对幼虫的滞育诱导无特定的敏感龄期，但以3龄与2龄对短光周刺激敏感性较强； - The larvae have 11-12 instars.
幼虫11～12龄； - Larva has 6 instars.
幼虫6龄，3龄前食量小，抗性弱，是防治的最佳时机。 - Difference in insecticide tolerance and enzyme activity of Spodoptera exigua larvae at different instars
甜菜夜蛾不同龄期幼虫药剂敏感性及酶活性差异 - In general, there are 6-8 larval instars, and larval development lasts 30-48 days.
萧氏松茎象幼虫龄数的估测幼虫一般68龄，历期3048天。 - The nymph has 2 instars, the first instar nymphs feed on leaves, and the second instar ones feed and fix on 1-2 years old branches until they become adults.
若虫2龄，1龄若虫在叶片上取食，2龄若虫在1～2年生枝条上固定，直至进入成虫期。 - In larval stage, the CAT activity declined with the increase of the instars.
在幼虫期，CAT活性随龄递减。 - This article gives rather detailed observations and morphologic descriptions to the eggs, larvae of each instar ( four instars in total), pupae and female adults ( not found the male adult).
本文对该虫的卵、各龄幼虫（共四龄）、蛹及雌成虫（尚未发现雄虫）等各虫期作了较为详细的观察研究和形态描述。 - Feeding with artificial diet indoor, the larvae finished 6 instars before pupation.
上树后的幼虫，在室内人工饲养条件下发育了6龄仍未化蛹。 - Effect of photoperiods and temperature on nymphal instars.
光周期、温度对若虫龄数发育的影响。 - The larva has 6 instars.
幼虫多6龄，少数为7龄。 - Parasitism rates were higher for the 2nd and 3rd instar larvae than for the 4th and 1st instars.
偏爱寄生2龄和3龄幼虫； - Over third instars larvae has a habit to feed the molting fresh skin.
3龄以上幼虫具有取食新鲜蜕皮的习性。 - After hatching, the larvae undergoes a obviously molting, it has two larval instars.
孵化后的蜂幼虫经历一次明显的蜕皮，明显存在两个虫龄。 - Among larvae of all instars of the two strains, the first instar larvae were always the most sensitive to tannins, while the third instar larvae appeared to be the most insensitive.
4个龄期幼虫中，无论是敏感品系还是抗氰戊菊酯品系，均是1龄幼虫对单宁酸的敏感性最高，3龄幼虫最低。