Developmental Threshold Temperature and Effective Accumulative Temperature of Pupae and Eggs of Holcocerus hippophaecolus

编号 zgly0000339014

文献类型 期刊论文

文献题名 Developmental Threshold Temperature and Effective Accumulative Temperature of Pupae and Eggs of Holcocerus hippophaecolus

学科分类 220.30;森林保护学

作者 ZongShixiang  LuoYouqing  WangTao  XuZhichun  LuChangkuan 

作者单位 CollegeofResourcesandEnvironment  BeijingForestryUniversity  Beijing100083  P.R.China 

母体文献 Forestry Studies in China;中国林学: 英文版 

年卷期 2004,6(4)

页码 34-38

年份 2004 

分类号 S763.736  S763.42 

关键词 发育临界温度  有效积温  卵  蛹  洋槐木蠹蛾  沙棘害虫 

文摘内容 In order to understand the occurrence and the developmental regularity of seabuckthom carpenterworm (Holcocerus hippophaecolus) and predict its population density, the developmental threshold temperature (C) and effective accumulative temperature (K) of the carpenterworm pupae and eggs were analyzed under the conditions of constant and variable temperatures. The results show that the values of C and K of the carpenterworm pupae are (12.1±0.2)℃ and (295.2±4.1) day-degrees at constant temperatures, and (15.5±0.4)℃ and (202.4±13.1) day-degrees at variable temperatures. However, the values of C and K of the eggs at variable temperatures are (16.7±0.8)℃ and (101.5±12.6) day-degrees. The differences of developmental threshold and effective accumulative temperature under the conditions of constant and variable temperatures of the carpenterworm pupae accord with the developmental regularity of most insects in nature. By comparing five different constant temperatures, the conclusion is that the optimum developmental temperature of the pupae is 21℃ when both the pupation of the mature larvae and the eclosion of the pupae are very accordant. Moreover, the percentage of eclosion is over 90%. The average developmental durations of the carpenterworm pupae and eggs are 31 and 16 d at variable temperatures。