National Key Laboratory of Green Pesticide, Department of Entomology, South China Agricultural University, Guangzhou, China.
Guangdong Provincial Key Laboratory of Utilization and Conservation of Food and Medicinal Resources in Northern Region, School of Biology and Agriculture, Shaoguan University, Shaoguan, China.
Pest Manag Sci. 2024 Oct;80(10):5026-5034. doi: 10.1002/ps.8227. Epub 2024 Jun 7.
Over the past two decades, bed bugs (Cimex spp.) have resurged as common urban pests around the world. The search for efficient and safe control measures has become a key interest among researchers, manufacturers, and pest control professionals. In this study, we evaluated and compared the efficacy of steam, diatomaceous earth (DE) dust, and a combination of both against tropical bed bugs (Cimex hemipterus (F.)) under laboratory and field conditions.
In the laboratory study, the mortality of bed bugs after 2 days of exposure to DE dust was 100%. When bed bugs stayed on the surface of an object or in cracks, a brief steam treatment (1 s) caused 100% mortality. However, when bed bugs were hidden under a fabric cover, steam application for 10 s only caused 89 ± 6% mortality. Bed bugs that survived steam treatment exhibited reduced feeding activity. In a 14-week long study, there was no significant difference in the reduction rate of bed bugs between steam treatment and DE dust treatment. A 37-week long control study showed that steam and steam plus DE dust treatments eliminated 97-100% of the infestations.
Applying steam and DE dust are effective strategies for eliminating natural tropical bed bug infestations. Continuous follow-up monitoring and treatment until no bed bugs are found are crucial in completely eliminating the infestation of tropical bed bugs. © 2024 Society of Chemical Industry.
在过去的二十年中，臭虫（Cimex spp.）作为全球常见的城市害虫再次出现。寻找有效且安全的控制措施已成为研究人员、制造商和害虫防治专业人员的主要关注点。在这项研究中，我们评估并比较了蒸汽、硅藻土（DE）粉尘以及两者结合对实验室和现场条件下的热带臭虫（Cimex hemipterus（F.））的效果。
在实验室研究中，暴露于 DE 粉尘 2 天后臭虫的死亡率为 100%。当臭虫停留在物体表面或裂缝中时，短暂的蒸汽处理（1 秒）可导致 100%的死亡率。然而，当臭虫隐藏在织物覆盖物下时，蒸汽应用 10 秒仅导致 89±6%的死亡率。经蒸汽处理后幸存的臭虫表现出降低的取食活性。在为期 14 周的研究中，蒸汽处理和 DE 粉尘处理对臭虫减少率没有显著差异。一项为期 37 周的控制研究表明，蒸汽和蒸汽加 DE 粉尘处理可消除 97-100%的感染。
应用蒸汽和 DE 粉尘是消除天然热带臭虫感染的有效策略。持续进行后续监测和治疗，直到没有臭虫出现，对于彻底消除热带臭虫的感染至关重要。 © 2024 化学工业协会。
