Loudon Catherine
Department of Ecology and Evolutionary Biology, University of California Irvine, Irvine, CA, USA.
Pest Manag Sci. 2017 Jan;73(1):64-70. doi: 10.1002/ps.4409. Epub 2016 Sep 6.
The resistance of bed bugs (Cimex lectularius L.) to chemical insecticides has motivated the development of non-chemical control methods such as heat treatment. However, because bed bugs tend to hide in cracks or crevices, their behavior incidentally generates a thermally insulated microenvironment for themselves. Bed bugs located on the outer surface of luggage are less insulated and potentially more vulnerable to brief heat treatment.
Soft-sided suitcases with adult male bed bugs on the outside were exposed to an air temperature of 70-75 °C. It took 6 min to kill all of the bed bugs, even those that had concealed themselves under zipper flaps or decorative piping. During heating, only one bed bug (out of 250 in total) moved into the luggage (through a closed zipper). Over long periods of time (24 h) at room temperature, adult male bed bugs on the exterior of luggage only infrequently moved inside; only 3% (5/170) had moved inside during 24 h.
Brief exterior heat treatment of luggage is a promising way to reduce the spread of bed bugs being transported on the outer surface of luggage. This treatment will not kill bed bugs inside the luggage, but could be a component of integrated management for this pest. © 2016 Society of Chemical Industry.
臭虫（温带臭虫）对化学杀虫剂产生的抗药性促使人们开发诸如热处理等非化学防治方法。然而，由于臭虫倾向于藏在裂缝或缝隙中，它们的行为无意间为自身创造了一个隔热的微环境。位于行李箱外表面的臭虫隔热性较差，可能更容易受到短暂热处理的影响。
将外面带有成年雄臭虫的软质行李箱暴露在70 - 75°C的气温下。杀死所有臭虫需要6分钟，即使是那些藏在拉链盖或装饰边条下面的臭虫。在加热过程中，总共250只臭虫中只有一只（通过闭合的拉链）进入了行李箱。在室温下长时间（24小时）放置后，行李箱外部的成年雄臭虫很少进入箱内；24小时内只有3%（5/170）进入了箱内。
对行李箱进行短暂的外部热处理是减少臭虫在行李箱外表面传播的一种有前景的方法。这种处理不会杀死行李箱内的臭虫，但可能是这种害虫综合管理的一个组成部分。© 2016化学工业协会。
