摘要
本研究在6个恒温(18、21、24、27、30、33℃)条件下,观察并记录了白茨粗角萤叶甲Diorhabda rybakowi卵、幼虫与蛹的发育历期和存活率,以及成虫的寿命和繁殖力。结果表明,卵和幼虫的发育历期随温度升高而缩短,发育速率随之加快。白茨粗角萤叶甲的卵、幼虫期、蛹、成虫产卵前期和世代的发育起点温度分别为(10.4±0.8)(12.2±0.7)(8.7±0.9)(16.4±0.8)℃和(8.6±0.9)℃,有效积温分别为(97.9±4.8)(158.2±7.9)(212.1±11.5)(158.6±13.6)日•度和(838.0±43.9)日•度。在低温18℃和高温33℃条件下,白茨粗角萤叶甲幼虫的存活率均降低,成虫的羽化率在33℃高温下显著降低,而卵的存活率高于幼虫期的存活率。白茨粗角萤叶甲生长发育和繁殖的最适温区为21℃<T≤30℃。
The developmental duration and survival rate of egg,larva and pupa and adult longevity and fecundity of Diorhabda rybakowi were investigated under six constant temperatures(18,21,24,27,30,33℃)in this study.The results showed that the developmental durations of egg and larva declined and the growth rate accelerated along with the increase of temperature.The threshold temperatures for development of egg,larva,pupa,pre-oviposition of adult and generation of D.rybakowi were(10.4±0.8)(12.2±0.7)(8.7±0.9)(16.4±0.8)℃and(8.6±0.9)℃,respectively,and the effective accumulated temperatures were(97.9±4.8)(158.2±7.9)(212.1±11.5)(158.6±13.6)and(838.0±43.9)degree-days,respectively.The larval survival rate decreased at 18℃and 33℃,and the adult emergence rate decreased significantly at 33℃,while the egg survival rate was higher than the larval survival rate.The optimum temperature(T)range for the growth,development and reproduction of D.rybakowi was 21℃<T≤30℃.
作者
刘宁云
勾文山
马维新
唐玲
胡桂馨
孙尧德
LIU Ningyun;GOU Wenshan;MA Weixin;TANG Ling;HU Guixin;SUN Yaode(Pratacultural College,Gansu Agricultural University,Engineering and Technology Research Center for Alpine Rodent Pest Control,National Forestry and Grassland Administration,Lanzhou 730070,China;Minqin County Grassland Workstation of Wuwei City,Gansu Province,Wuwei 733399,China)
出处
《植物保护》
CAS
CSCD
北大核心
2023年第2期220-226,共7页
Plant Protection
基金
国家自然科学基金(31960350)
民勤县荒漠草原主要害虫调查与监测试点项目(XZ20200610)。
关键词
温度
白茨粗角萤叶甲
发育历期
存活率
繁殖
temperature
Diorhabda rybakowi
developmental duration
survival rate
reproduction
