| 摘要: |
| 文章通过人工接种和连续跟踪调查，对桉树枝瘿姬小蜂的发育历期、发育起点温度和有效积温进行了研究。结果表明，在20.5~28.6 ℃之间，随着温度的升高，发育历期缩短；桉树枝瘿姬小蜂的成虫、虫瘿和世代的发育起点温度分别为10.79，10.25，10.21 ℃，有效积温分别为53.42，749.73，811.75 d·℃。该虫在广西壮族自治区南宁市2009年发生代数的理论值为5.23代，与实际观察结果一致。 |
| 关键词: 桉树枝瘿姬小蜂 发育历期 发育起点温度 有效积温 |
| DOI： |
| 分类号: |
| 基金项目:林业公益性行业科研专项经费（201004003）； 广西壮族自治区林业科技项目(桂林科字［2009］3号）；广西优良用材林资源培育重点实验室自主课题（12B0403） |
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| Threshold and Effective Accumulative Temperature for the \=Development of Leptocybe invasa |
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Wu Yaojun,Chang Mingshan,Li Dewei and Jiang Xuejan
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Guangxi Zhuang Autonomous Region Forestry Research Institute,Guangxi Zhuang Autonomous Region Forestry Research Institute,Guangxi Zhuang Autonomous Region Forestry Research Institute
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| Abstract: |
| The developmental duration, developmental threshold and effective accumulative temperature of Leptocybe invasae, an important insect pest of eucalyptus, were studied in the laboratory by artificial inoculation and continuous investigation. The results showed that under three constant temperatures ranging from 20.5 to 28.6 ℃, the durations of various stages of L. invasa were shortened with an increase in temperature. The threshold temperatures of adult, gall and a generation were estimated to be 10.79, 10.25, 10.21 ℃, the effective accumulative temperatures were 53.42, 749.73, 811.75 d·℃. Based on the investigation, the occurrence theoretical value of L. invasa was 5.23 generations in 2009 in Nanning, it was constant with the actual observation. |
| Key words: Leptocybe invasa Fisher La Salle, developmental duration, threshold temperature for development, effective accumulative temperature |
