College of Forestry, Northwest A&F University, Yangling, Shaanxi, 712100, China.
Beijing Key Laboratory for Forest Pest Control, Beijing Forestry University, Beijing, 100083, China.
Pest Manag Sci. 2021 Jun;77(6):2766-2772. doi: 10.1002/ps.6305. Epub 2021 Feb 27.
The tree-of-heaven root and trunk weevils, Eucryptorrhynchus scrobiculatus (TRW) and E. brandti (TTW) are important boring pests of Ailanthus altissima in China. Overwintering TRW and TTW adults can continue to damage A. altissima trees and reproduce after they emerge from the soil each year. There is a lack of studies regarding the development of control measures during the overwintering period. A polyethylene terephthalate bottle trap (PETBT) and corrugated paper box trap (CPBT) were evaluated for their ability to trap TRW and TTW adults descending from trees to overwinter in the soil in Wutongshu and Shabatou locations in Ningxia, China.
Significantly more overwintering TRW adults were caught by the PETBT than the CPBT. There were no significant differences in the TTW captures in PETBT when compared to the CPBT. Both PETBT and CPBT have little effect on trapping overwintering TTW adults. Further trapping studies showed that PETBT treatments significantly reduced overwintering TRW numbers caught in population monitoring trap nets placed on the A. altissima tree trunks (an average annual reduction of 42% than the untreated trees).
These results demonstrate that PETBT is effective for trapping overwintering TRW adults. PETBT could be recommended as an alternative for managing TRW in the framework of integrated pest management. © 2021 Society of Chemical Industry.
臭椿沟眶象和苦楝沟眶象是中国臭椿和苦楝的重要蛀干害虫。越冬代成虫出土后继续为害和繁殖。目前缺乏越冬期防治措施的研究。本研究采用聚酯瓶诱捕器（PETBT）和瓦楞纸箱诱捕器（CPBT）对宁夏吴忠市和石嘴山市的臭椿和苦楝树上越冬的成虫下树入土情况进行了诱捕研究。
与 CPBT 相比，PETBT 诱捕到的越冬代臭椿沟眶象成虫数量显著更多。PETBT 和 CPBT 对诱捕越冬代苦楝沟眶象成虫的效果没有显著差异。PETBT 和 CPBT 对诱捕越冬代苦楝沟眶象成虫的效果均不理想。进一步的诱捕研究表明，PETBT 处理显著降低了诱捕网中越冬代臭椿沟眶象成虫的数量（与未处理的树木相比，平均每年减少 42%）。
这些结果表明，PETBT 对诱捕越冬代臭椿沟眶象成虫是有效的。PETBT 可作为综合虫害管理框架中防治臭椿沟眶象的一种替代方法。 © 2021 英国化学学会。
