Nurfida Nurfida, Sofia Sofia, Nasrulla Nasrulla, Junaidi Junaidi

Household Insecticide Use In Relation To Aedes Spp. Resistance In Gampong Lampaseh Aceh Tahun 2025

Introduction

Household insecticide use in relation to aedes spp. Resistance in gampong lampaseh aceh tahun 2025. In Gampong Lampaseh Aceh, a study explores household insecticide use vs. Aedes resistance. Suboptimal application, not resistance, reduces effectiveness. Environmental sanitation is key.

Abstract

The improper use of household insecticides can reduce vector susceptibility and potentially lead to the emergence of resistant mosquito populations. In Lampaseh Village, most residents routinely spray insecticides indoors as an effort to prevent mosquito nuisance. However, despite regular spraying, residents continue to report the presence of mosquitoes. The number of Dengue Hemorrhagic Fever (DHF) cases in this area is relatively low, yet cases are reported every year. This indicates that the threat of Aedes mosquitoes as vectors of the dengue virus has not been completely eliminated and that control efforts still require serious attention. This study is descriptive in nature, aiming to illustrate household insecticide use patterns and identify the resistance status of Aedes sp. mosquitoes through laboratory-based Susceptibility Tests. Data on insecticide use were collected through interviews with 86 households, while resistance testing was conducted on 75 adult mosquitoes. Findings are presented in narrative and percentage form. The results showed that the application of household insecticides was not fully in line with recommended practices. The majority of respondents reported using aerosol sprays (40%), which pose a risk of excessive application. Most spraying was conducted at night (81.40%), whereas the peak biting activity of Aedes aegypti occurs in the morning and late afternoon. In terms of frequency, the majority (58.14%) did not spray daily. Nevertheless, the Susceptibility Test demonstrated that mosquitoes remained susceptible to cypermethrin, with a mortality rate of 100%. In conclusion, the reduced effectiveness of insecticides in the field is not caused by mosquito resistance but is more likely influenced by suboptimal application practices. Simple preventive measures such as maintaining environmental sanitation, draining water containers, and eliminating stagnant water remain more effective strategies to disrupt the mosquito life cycle.

Review

The submitted manuscript addresses a highly pertinent public health issue concerning the effectiveness of dengue vector control, specifically in the context of household insecticide use in Gampong Lampaseh Aceh. The premise—that improper insecticide application may foster mosquito resistance and explain persistent mosquito presence despite control efforts—is a critical area of investigation. This study aims to shed light on the complex interplay between public behavioral practices, insecticide efficacy, and the endemic nature of Dengue Hemorrhagic Fever (DHF) cases, providing valuable insights into a common challenge faced by communities striving to mitigate vector-borne diseases. Employing a descriptive methodology, the research effectively combines community-level data on insecticide use with laboratory-based susceptibility testing. Interviews with 86 households revealed concerning patterns: a high reliance on aerosol sprays, predominantly applied at night, and often not on a daily basis. These practices starkly contrast with recommended guidelines, particularly given *Aedes aegypti*'s peak biting times. Crucially, despite these suboptimal field applications, the susceptibility tests on 75 adult *Aedes* mosquitoes demonstrated 100% mortality to cypermethrin, definitively ruling out insecticide resistance as the cause of perceived ineffectiveness. This finding strongly suggests that the reported persistence of mosquitoes is attributable to inadequate application methods rather than an inherent biological resistance in the mosquito population. A significant strength of this study lies in its direct challenge to the assumption that persistent mosquito presence automatically signals resistance, instead pinpointing behavioral factors. The clear conclusion that improved application and adherence to recommended practices, alongside fundamental environmental sanitation, are key to enhancing control efforts is a vital message for public health campaigns. While the descriptive nature and relatively small mosquito sample size limit the generalizability and inferential power, the study provides actionable insights for the local context. Future research could expand to include a wider range of insecticides and mosquito species, as well as qualitative investigations into the drivers behind current household practices. Ultimately, this work reaffirms the foundational importance of integrated vector management strategies, particularly source reduction, over reliance on potentially misused chemical interventions.

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