云杉八齿小蠹的有效积温
The effective accumulated temperature of Ips typographus
佟 雪1；杨 彬2；王志明1**
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作者单位：1.吉林农业大学农学院 长春 130118; 2.吉林省延边朝鲜族自治州森林病虫防治检疫站 延吉 133001
中文关键词：云杉八齿小蠹, 生物学, 有效积温, 发育起点
英文关键词：Ips typogr aphus , biology, effective accumulated temperature, threshold temperature
中文摘要：采用以云杉八齿小蠹Ips typ ographus L. 侵入云杉皮下为起点, 至下一代成虫羽化外出为止的统计方法对其进行发育起点温度和有效积温的测定。结果表明, 云杉八齿小蠹此段的发育起点温度为(18.3±0.2)℃ , 有效积温为( 195.4±10) 日·度。
英文摘要：The effective accumulated temperature and threshold temperature of bark beetle, lps typ ographus , were determined from adult boring through the bark to the new first adult emergence. The effective accumulated temperature was ( 195.4±10) degree- day, and the threshold temperature was ( 18.3±0.2)℃ .