摘要
通过定点观测,研究了杨潜叶跳象生态学特性,结果表明,杨潜叶跳象卵孵化率为82.1%,幼虫成活率93.1%,羽化率53.3%,性比为1∶1。卵期发育起点温度11.65℃±0.18℃,有效积温8.27±1.28日度。幼虫期发育起点温度14.53±0.45℃,有效积温31.54±7.16日度。预蛹—蛹期发育起点温度16.80±0.31℃,有效积温24.76±3.41日度。
Through fixed observation, ecological characteristics of Rhynchaenus empopulifolis Chen were studied. Result shows that： the egg hatching rate, larvae survival ＆ emergence rate of Rhynchaenus empopulifolis whose sex ratio is 1 ： 1 is 82.1%, 93.1%, 53.3 %, respectively; the development threshold temperature （DTr） and effective accumulated teraperature （EAT） during egg stage is 11.65 ℃ ± 0.18℃ ,8.27 ± 1.28 degree day, respectively. The DTT and EAT during larval stage is 14.53 ±0.45℃ ,31.54 ±7.16 degree day respectively. The DTT and EAT during prepupa-pupal stage is 16.80 ± 0.31℃ ,24.76 ±3.41 degree day.
出处
《防护林科技》
2009年第4期20-22,共3页
Protection Forest Science and Technology
基金
黑龙江省科技厅项目(GB06B304-2)
关键词
杨潜叶跳象
生态学特性
发育起点温度
有效积温
Rhynchaenus empopulifolis Chen
ecological characteristics
the development threshold temperature （DTT）
the effective accumulated temperature（EAT）
