Barbarin Alexis M, Bellicanta Giovani S, Osborne Jason A, Schal Coby, Jenkins Nina E
Department of Entomology and Plant Pathology and W.M. Keck Center for Behavioral Biology, North Carolina State University, Raleigh, NC, USA.
Department of Entomology, Pennsylvania State University, University Park, PA, USA.
Pest Manag Sci. 2017 Aug;73(8):1568-1573. doi: 10.1002/ps.4576. Epub 2017 May 10.
Bed bugs are a public health concern, and their incidence is increasing worldwide. Bed bug infestations are notoriously difficult to eradicate, further exacerbated by widespread resistance to pyrethroid and neonicotinoid insecticides. This study evaluated the efficacy of the newly developed fungal biopesticide Aprehend™, containing Beauveria bassiana, against insecticide-resistant bed bugs.
Overall mortality for the Harold Harlan (insecticide-susceptible) strain was high (98-100%) following exposure to Aprehend™ or Suspend SC (deltamethrin). The mean survival times (MSTs) for Harold Harlan bed bugs were 5.1 days for Aprehend™ and 4.8 and 3.0 days for the low and high concentrations of Suspend SC respectively. All three strains of pyrethroid-resistant bed bugs were susceptible to infection by B. bassiana, resulting in MSTs of <6 days (median = 4 days) and >94% overall mortality. Conversely, mortality of the three insecticide-resistant strains after exposure to Suspend SC was only 16-40%.
These results demonstrate that Aprehend™ is equally effective against insecticide-susceptible and insecticide-resistant bed bugs and could provide pest control operators with a promising new tool for control of bed bugs and insecticide resistance management. © 2017 The Authors. Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
臭虫是一个公共卫生问题，其在全球的发生率正在上升。臭虫侵扰 notoriously 难以根除，对拟除虫菊酯和新烟碱类杀虫剂的广泛抗性进一步加剧了这一情况。本研究评估了新开发的含有球孢白僵菌的真菌生物杀虫剂 Aprehend™ 对杀虫剂抗性臭虫的效果。
哈罗德·哈伦（杀虫剂敏感）品系在接触 Aprehend™ 或 Suspend SC（溴氰菊酯）后总体死亡率很高（98 - 100%）。哈罗德·哈伦臭虫接触 Aprehend™ 的平均存活时间（MST）为 5.1 天，接触低浓度和高浓度 Suspend SC 的平均存活时间分别为 4.8 天和 3.0 天。所有三个拟除虫菊酯抗性臭虫品系均易受球孢白僵菌感染，导致 MST < 6 天（中位数 = 4 天）且总体死亡率 > 94%。相反，这三个抗杀虫剂品系接触 Suspend SC 后的死亡率仅为 16 - 40%。
这些结果表明，Aprehend™ 对杀虫剂敏感和抗杀虫剂的臭虫同样有效，可为害虫防治操作人员提供一种有前景的控制臭虫及管理杀虫剂抗性的新工具。© 2017 作者。《害虫管理科学》由 John Wiley & Sons Ltd 代表化学工业协会出版。
