Abdullah Nurul Nabila Aini, Ab Majid Abdul Hafiz
Household & Structural Urban Entomology Laboratory, Vector Control Research Unit, School of Biological Sciences, Universiti Sains Malaysia (USM), Penang, 11800 Minden, Malaysia.
Department of Chemistry, Faculty of Science and Mathematics, Universiti Pendidikan Sultan Idris (UPSI), 35900 Tanjong Malim, Perak, Malaysia.
Heliyon. 2023 Jan 6;9(1):e12833. doi: 10.1016/j.heliyon.2023.e12833. eCollection 2023 Jan.
The American cockroach, , is the most prevalent domiciliary and invasive urban pest in the sewer and waste water system. It poses a substantial threat to human public health and home allergens. This study was conducted at Universiti Sains Malaysia main campus to highlight and provide information on the control and management of American cockroach infestations in sewage systems by comparing the efficiency of fipronil 0.05% gel bait with imidacloprid 2.5% gel bait. A total number of adult and nymph stages of trapped American cockroaches was recorded using glass jar traps at eight sampling sites. Gel baits were placed beneath the lids of each manhole shaft along the inner wall perimeter.
The use of fipronil and imidacloprid gel baits in the sewer system resulted in a significant difference (P = 0.013). Imidacloprid 2.5% gel bait, compared to fipronil 0.05% gel bait, is the most effective treatment technique for reducing American cockroaches' population in sewer systems, with a high reduction percentage mean for both adult (91.17%) and nymph (85.50%) stages.
As a conclusion, imidacloprid gel bait can effectively control cockroaches in sewer systems up to eight weeks.
美洲大蠊是下水道和废水系统中最常见的居家及入侵性城市害虫。它对人类公共健康和家庭过敏原构成重大威胁。本研究在马来西亚理科大学主校区开展，旨在通过比较0.05%氟虫腈凝胶饵剂和2.5%吡虫啉凝胶饵剂的效果，突出并提供有关污水系统中美洲大蠊虫害控制与管理的信息。在八个采样点使用玻璃罐诱捕器记录捕获的美洲大蠊成虫和若虫阶段的总数。凝胶饵剂沿着内壁周边放置在每个沙井井盖下方。
在下水道系统中使用氟虫腈和吡虫啉凝胶饵剂产生了显著差异（P = 0.013）。与0.05%氟虫腈凝胶饵剂相比，2.5%吡虫啉凝胶饵剂是减少下水道系统中美洲大蠊数量最有效的处理技术，成虫（91.17%）和若虫（85.50%）阶段的平均减少率都很高。
总之，吡虫啉凝胶饵剂可有效控制下水道系统中的蟑螂长达八周。
