Sun Xuewen, Song Wei, Guo Wenjuan, Wang Shujie, Wen Junbao
Beijing Key Laboratory for Forest Pests Control, College of Forestry, Beijing Forestry University, No. 35, Tsinghua East Road, Beijing 100083, China.
Insects. 2023 Mar 3;14(3):253. doi: 10.3390/insects14030253.
The tree-of-heaven trunk weevil, (Harold) (Coleoptera: Curculionidae), is one of the most harmful pests that damage the tree of heaven, Swingle (Sapindales: Simaroubaceae). Aggregation behavior tests of adults were conducted in laboratory conditions. The effects of temperature and light on the aggregation behavior of adults were tested, and the effect of sex and host was conducted with binomial choice experiments. The results showed that (1) the adults aggregate in both light and dark environments but preferred the dark environment, (2) temperature can drive the aggregation of adults, (3) host plants could trigger adults' aggregation behavior, which is probably related to phytochemicals and insect feeding and localization, (4) there was mutual attraction of males and females and chemical attraction of crude intestinal extracts of males and females, and (5) aggregation behavior of adults may also be related to the mediating of physical signals in insects. In this study, aggregation behavior can help us understand conspecific interactions and discover some strategies for effective control.
臭椿沟眶象（Harold）（鞘翅目：象甲科）是危害臭椿（Swingle）（无患子目：苦木科）的最有害害虫之一。在实验室条件下对成虫的聚集行为进行了测试。测试了温度和光照对成虫聚集行为的影响，并通过二项选择实验研究了性别和寄主的影响。结果表明：（1）成虫在明亮和黑暗环境中都会聚集，但更喜欢黑暗环境；（2）温度可促使成虫聚集；（3）寄主植物可引发成虫的聚集行为，这可能与植物化学物质以及昆虫取食和定位有关；（4）雌雄之间存在相互吸引以及雌雄肠道粗提物的化学吸引；（5）成虫的聚集行为也可能与昆虫体内物理信号的介导有关。在本研究中，聚集行为有助于我们理解同种个体间的相互作用，并发现一些有效的防治策略。
