苦楝对星天牛的引诱研究

通过设置室内多树种混合引诱实验和林间引诱实验对苦楝Melia azedarach引诱星天牛Anoplophora chinensis成虫的效果进行了详细比较。结果表明:苦楝对星天牛成虫具有较强的引诱作用,并且数量较多的苦楝引诱效果更为明显,100株苦楝的诱虫率为79.25%,而50株苦楝诱虫率仅为28.57%。在同一的环境下,苦楝枝条的平均被取食面积为6.19 cm2,远大于黄山栾树Koelreuteria integrifoliola和木麻黄Casuarina equiselifolia。实验结果以期为星天牛防治提供新的理论基础和技术手段。

Attractiveness of Melia azedarach to Anoplophora chinensis

 We studied the attractiveness of Melia azedarach to Anoplophora chinensis by both bioassay in the laboratory and field trapping. The results indicated that Melia azedarach had strong attractiveness to Anoplophora chinensis. The increase in the number of Melia azedarach would result in increased attractiveness. The trapping rate of 100 Melia azedarach trees was 79.25 per cent while that of 50 Melia azedarach trees was only 28.57 per cent. In the same environment, the average feeding area of Melia azedarach branch was 6.19 cm², larger than that of Koelreuteria integrifoliola and Casuarina equisetifolia. The research findings would provide new theoretical foundation and technique for the control and prevention of Anoplophora chinensis. ［Ch, 5 fig. 2 tab. 15 ref.］