| 摘要: |
| 为明确星天牛 Anoplophora chinensis 在寄主植物上的空间分布规律，更好地开展星天牛种群调查和精准防控，在武汉地区选取受害严重的 6 条城市道路，对星天牛幼虫在寄主植物悬铃木 Platanus acerifolia 上的不同高度、不同方位的分布进行了实地调查和分析。结果表明：星天牛幼虫在悬铃木不同高度层分布存在较大差异。星天牛集中分布在树干 1~2 m 和 5 m 以上，占比分别为 21.63%、19.01%，其次是 2~3 m、3~4 m 区段，在根基部分布较少，占比 1.80%。方位对星天牛的空间分布没有显著影响。1~2 m 区段虫孔数量与整株虫孔数量呈极显著相关，根据 1~2 m 区段虫孔数量可预测整株星天牛的幼虫虫口数量。因此，在星天牛虫情监测与精准防控时，应结合种群空间分布差异合理施用不同防治措施。 |
| 关键词: 星天牛 空间分布 悬铃木 虫孔 |
| DOI： |
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| 基金项目:武汉市园林和林业局科研项目（WHGF2021A01） |
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| Study on Spatial Distribution of Anoplophora chinensis on Platanus acerifolia |
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wangzhihua, donglikun, mao runping, yu jingya, liu chao, duan qingming
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Wuhan Institute of Landscape Architecture
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| Abstract: |
| In order to clarify the spatial distribution pattern of Anoplophora chinensis on Platanus acerifolia and provide valuable information about detecting and precise controlling A.chinensis, field surveys and analyses were conducted on the distribution of low instar larvae of A. chinensis at different heights and orientations on the P. acerifolia in six roads in Wuhan. The results showed that there were significant difference in the distribution of A. chinensis larvae at different height levels in the hanging bush. The larvae were concentrated on the trunk 1-2 m and above 5 m, accounting for 21.63% and 19.01% respectively, followed by the 2-3 m and 3-4 m zones, and less in the root base, accounting for 1.80%. Orientation had no significant effect on the spatial distribution of A.chinensis. The number of insect holes in the 1-2 m zone was highly significantly correlated with the number of insect holes in the whole plant, and the number of insect holes in the 1-2m zone could predict the number of insects in the whole plant. Therefore, different control measures should be applied in conjunction with the spatial distribution of the population when monitoring and precisely controlling the insects. |
| Key words: Anoplophora chinensis spatial distribution Platanus acerifolia wormhole |
