Chase Kevin D, Stringer Lloyd D, Butler Ruth C, Liebhold Andrew M, Miller Daniel R, Shearer Peter W, Brockerhoff Eckehard G
Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Private Bag, Christchurch, New Zealand.
Scion (New Zealand Forest Research Institute), Christchurch, New Zealand.
J Econ Entomol. 2018 Sep 26;111(5):2255-2263. doi: 10.1093/jee/toy190.
Invasions by insects introduced via international trade continue to cause worldwide impacts. Surveillance programs using traps baited with host volatiles and pheromones can detect incursions of nonnative species. We report on two experiments executed to determine if attractants for several insect species can be combined without compromising trap catches and detection ability of target species. In the first experiment, we tested the effect of bark beetle pheromones (plus α-pinene) and trap contact with foliage on trap catches of the brown marmorated stink bug Halyomorpha halys Stål (Hemiptera: Pentatomidae) in traps baited with a mixture of bisabolenes and methyl (E,E,Z)-2,4,6-decatrienoate. Trap capture of H. halys adults was greater in traps not in contact with foliage, and the bark beetle pheromones ipsenol and ipsdienol did not affect trap capture of H. halys. In the second experiment, we tested the effects of multi-lure interactions among the primary host attractants α-pinene and ethanol, and the pheromones monochamol, ipsenol, ipsdienol, lanierone, and the H. halys compounds, on trap captures of various forest and agricultural insect pests. Specifically, we targeted Monochamus spp. (Coleoptera: Cerambycidae), Ips spp. (Coleoptera: Scolytinae) and H. halys. We found that a combination of all lures did not catch significantly lower numbers of Monochamus carolinensis Olivier, Monochamus scutellatus Say (Coleoptera: Cerambycidae), and Ips pini Say (Coleoptera: Scolytidae) than lure combinations missing components although removal of both lanierone and ipsdienol somewhat increased catches of Ips grandicollis Eichhoff (Coleoptera: Curculionidae). Our results support the use of traps baited with a full combination of these attractants in surveillance programs. This should reduce costs and increase detection rates of a wider range of conifer forest pests and H. halys.
通过国际贸易引入的昆虫入侵持续对全球造成影响。利用用寄主挥发物和性信息素诱捕的监测计划能够检测非本地物种的入侵。我们报告了两项实验，以确定几种昆虫物种的引诱剂能否在不影响诱捕量和目标物种检测能力的情况下进行组合。在第一个实验中，我们测试了小蠹虫信息素（加α-蒎烯）以及诱捕器与树叶接触对用红没药烯和甲基（E,E,Z）-2,4,6-癸三烯酸酯混合物诱捕的陷阱中褐边绿刺蛾Halyomorpha halys Stål（半翅目：蝽科）诱捕量的影响。未与树叶接触的陷阱中褐边绿刺蛾成虫的诱捕量更高，小蠹虫信息素异松油醇和异长叶烯不影响褐边绿刺蛾的诱捕量。在第二个实验中，我们测试了主要寄主引诱剂α-蒎烯和乙醇以及信息素红杉醇、异松油醇、异长叶烯、拉尼尔酮和褐边绿刺蛾化合物之间的多引诱剂相互作用对各种森林和农业害虫诱捕量的影响。具体来说，我们的目标是松墨天牛属（鞘翅目：天牛科）、 Ips属（鞘翅目：小蠹亚科）和褐边绿刺蛾。我们发现，与缺少某些成分的引诱剂组合相比，所有引诱剂组合对卡罗来纳松墨天牛Olivier、黄星天牛Monochamus scutellatus Say（鞘翅目：天牛科）和北美云杉小蠹Ips pini Say（鞘翅目：小蠹科）的诱捕量并没有显著降低，尽管同时去除拉尼尔酮和异长叶烯在一定程度上增加了大颈小蠹Ips grandicollis Eichhoff（鞘翅目：象甲科）的诱捕量。我们的结果支持在监测计划中使用用这些引诱剂的完整组合诱捕的陷阱。这应该会降低成本并提高对更广泛的针叶林害虫和褐边绿刺蛾的检测率。
