海南省降香黄檀害虫种类、分布及危害症状调查

【背景】降香黄檀被确定为海南省省树后,种植面积迅速增大,但对于其病虫害的监测与防控方面的研究较少。【方法】采用人工采集结合灯光诱集的方法,调查降香黄檀种植区的害虫种类,同时对其危害症状进行了详细描述。【结果】海南降香黄檀害虫共计19种,确定了其中18种的学名,并掌握了各害虫的分类学地位、危害部位及症状。害虫在降香黄檀植株各个组织部位均有分布,其中以叶部的分布数量较大,茎干次之。苗期以食叶性害虫居多;5年生以内的植株上蛀干害虫数量显著增多;老龄植株上的茎干害虫较少。【结论与意义】海南省降香黄檀各生育期均有害虫危害,日后仍需加强对其害虫监测与防控技术的研究。

Investigation on pest species, distribution and damage symptom of Dalbergia odorifera in Hainan Province

Background] As provincial tree of Hainan Province, planting area of Dalbergia odorifera increased significantly. However, pest monitoring and prevention has not been fully implemented. Method] Manual capture and light trap were used to capture pest in D. odorifera, and damage symptom was also analyzed. Result] 19 types of pests were collected from D. odorifera, and 18 Latin names were determined, together with taxonomic status, damaging location and symptom of each species. All parts of D. odorifera could be damaged by pests with leaf being the worst infested part, followed by stem. At seedling stage, leaf-feeding pest was in the majority, and stem-feeding pest increased significantly in trees under 5 years old. Very few stem-feeding pests fed on old trees. Conclusion and significance] All growth stages of D. odorifera may be damaged by pest in Hainan Province, and pest monitoring and control method should be strengthened in the future.