Boiteau G
Agriculture and Agri-Food Canada, Potato Research Centre, Fredericton, NB, Canada.
J Econ Entomol. 2000 Jun;93(3):630-5. doi: 10.1603/0022-0493-93.3.630.
Interception traps have been used to monitor and sample Colorado potato beetle, Leptinotarsa decemlineata (Say), populations in flight, but the efficiency of these traps was unknown. The efficiency of interception window traps is limited because flying adults avoid the traps and may bounce off the trap without being collected. All trap types tested were avoided in flight chamber tests, including those constructed of transparent Plexiglas or yellow wood boards. A larger screen trap and a harp trap designed to reduce detection were also avoided by the beetles in flight. None of the traps provide a direct estimate of the number of adults randomly flying in the trap area. The highest level of efficiency for window traps was obtained with the yellow trap, which caught 16% of the expected flying population. Harp and screen traps without frames intercepted 60-62% of the expected flying population. The presence of a frame did not increase significantly the avoidance of the screen and harp traps by beetles in flight. Recommendations are made to maintain or increase the efficiency of some traps.
拦截式诱捕器已被用于监测和采集马铃薯甲虫（Leptinotarsa decemlineata (Say)）飞行中的种群，但这些诱捕器的效率尚不清楚。拦截式窗口诱捕器的效率有限，因为飞行中的成虫会避开诱捕器，可能会从诱捕器上弹开而未被捕获。在飞行室测试中，所有测试的诱捕器类型都被避开了，包括由透明有机玻璃或黄色木板制成的诱捕器。甲虫在飞行中也避开了为减少被发现而设计的更大的筛网诱捕器和竖琴诱捕器。没有一个诱捕器能直接估计在诱捕区域随机飞行的成虫数量。窗口诱捕器效率最高的是黄色诱捕器，它捕获了预期飞行种群的16%。没有框架的竖琴诱捕器和筛网诱捕器拦截了预期飞行种群的60 - 62%。框架的存在并没有显著增加甲虫在飞行中对筛网诱捕器和竖琴诱捕器的避开率。文中给出了一些维持或提高某些诱捕器效率的建议。
