温度对丝带凤蝶生长发育的影响

温度对丝带凤蝶生长发育的研究。结果表明,丝带凤蝶在武汉地区1年发生6代。在15~35℃范围内,卵孵化率、幼虫和蛹存活率分别在25,25和20℃时最高,卵、幼虫和蛹发育历期随温度升高显著缩短;适宜发育温度范围为20~35℃。丝带凤蝶卵、幼虫和蛹的发育起点温度分别约为(8.7±2.5)℃、(11.9±6.0)℃和(6.9±1.8)℃,有效积温分别约为(82.5±5.1),(222.2±39.5)和(178.7±7.3)日.度。

Effect of temperature on development in Sericinus montelus

Sericinus montelus Gray was investigated in Wuhan area and effects of temperatures on its development were measured. The results showed that this butterfly could complete 6 generations from April to August, and overwinter as pupa from the end of September to the end of March of next year in Wuhan. Within the range of 15～35℃ combined with a photoperiod of 14L∶10D, egg hatching, survival of larva and pupa was the highest at 25, 25 and 20℃ respectively. The developmental periods of eggs, larvae and pupae decreased significantly with temperature increasing. Optimal temperature for development ranged from 20 to 35℃. Moreover, the developmental threshold temperatures of the eggs, larvae and pupae was estimated as (8.7±2.5), (11.9±6.0) and(6.9±1.8)℃, respectively. The effective accumulative temperature the eggs, larvae and pupae are(82.5±5.1), (222.2±39.5) and (178.7±7.3) degree-days, respectively.