Efficacy of steam and diatomaceous earth dust against the tropical bed bug Cimex hemipterus (F.) under laboratory and field conditions.

Autor: Kong D; 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., Xie Y; National Key Laboratory of Green Pesticide, Department of Entomology, South China Agricultural University, Guangzhou, China., Wang Z; National Key Laboratory of Green Pesticide, Department of Entomology, South China Agricultural University, Guangzhou, China., Shi D; National Key Laboratory of Green Pesticide, Department of Entomology, South China Agricultural University, Guangzhou, China., Liang Q; National Key Laboratory of Green Pesticide, Department of Entomology, South China Agricultural University, Guangzhou, China., Fan M; National Key Laboratory of Green Pesticide, Department of Entomology, South China Agricultural University, Guangzhou, China., Lyu L; Ningbo Dayang Technology Co., Ltd., Ningbo, China., Xu X; Ningbo Dayang Technology Co., Ltd., Ningbo, China., Guo H; School of Biological Engineering, Xinxiang University, Xinxiang, China., Jia C; 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., Wang C; Department of Entomology, Rutgers University, New Brunswick, NJ, USA., Wang D; National Key Laboratory of Green Pesticide, Department of Entomology, South China Agricultural University, Guangzhou, China.
Jazyk: angličtina
Zdroj: Pest management science [Pest Manag Sci] 2024 Oct; Vol. 80 (10), pp. 5026-5034. Date of Electronic Publication: 2024 Jun 07.
DOI: 10.1002/ps.8227
Abstrakt: Background: 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.
Results: 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.
Conclusion: 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.
(© 2024 Society of Chemical Industry.)
Databáze: MEDLINE
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