Volatile profiles of three tree species in the northeastern China and associated effects on Sirex noctilio activity

Journal of plant interactions

article

Qiang Xu¹  Xue-Ting Sun¹  Peng-Fei Lu¹  You-Qing Luo¹  Juan Shi¹ 

[1] Key Laboratory of Beijing for the Control of Forest Pests, Beijing Forestry University

关键词: Wood wasps;    volatiles;    Mongolian pine;    invasive insect;    host selection;    Hymenoptera;   

DOI  :  10.1080/17429145.2019.1629035

学科分类：纳米科学和纳米技术

来源: Taylor & Francis

【 摘 要 】

The wood-boring wasp, Sirex noctilio , is an invasive pest of numerous species of pine trees worldwide. The female S. noctilio wasps selectively lay eggs on different pine trees. The relationship between host volatile organic compounds and the wood wasps remains elusive. Here, the behaviors of the wood towards the host volatiles wasps were investigated. In Junde Forest Farm, three tree species, Pinus sylvestris var. mongolica , Larix gmelinii (Rupr.) Kuzen., and P. koraiensis Sieb.et Zucc., were girdled. Four treatments of trees, un-girdled, girdled, dying, and dead tree, were randomly selected as sample trees. Lindgren 12-funnel trap was placed on sample tree. The traps were checked once a week and the number of S. noctilio was recorded. The relationship between volatiles and S. noctilio attraction was analyzed by collecting volatiles from different tree species and treatments. trans -β-Ocimene, terpinolene, α-pinene oxide, and longifolene were present only in girdled P. sylvestris var. mongolica . Girdling the host tree can make released more volatiles, which was conducive to attracting S. noctilio . Effect of a single compound on S. noctilio is limited, but a mixture of multiple components formed a specific chemical signature to female S. noctilio . It could be useful in the monitoring and effective management of wood wasps.

【 授权许可】

CC BY|CC BY-NC