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All Journal Jurnal Entomologi Indonesia 3BIO: Journal of Biological Science, Technology and Management
Yusmalinar, Sri
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Immunology & microbiology Neuroscience

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Effectiveness and Public Perception of Synthetic and Natural-Based Mosquito Repellents Against Aedes aegypti in Indonesia Ahmad, Intan; Amalia, Riska; Yusmalinar, Sri
3BIO: Journal of Biological Science, Technology and Management Vol. 7 No. 1 (2025): Vol. 7 No. 1 (2025)
Publisher : School of Life Sciences and Technology, Institut Teknologi Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5614/3bio.2025.7.1.1

Abstract

Since 1968, dengue fever cases in Indonesia have persisted despite various vector control efforts. One of the most common and accessible methods of personal protection is the use of mosquito repellents. This study evaluated public perceptions of mosquitoes and repellents, their willingness to pay (WTP) for these products, and the efficacy of synthetic and natural-based repellents against Aedes aegypti, considering variations in mosquito strain and age. A Knowledge, Attitude, and Practices (KAP) analysis was conducted to assess public understanding and behaviors, utilizing the Analytical Hierarchy Process (AHP) and SWOT-AHP. Repellent efficacy was tested using the arm-in-cage method based on WHO guidelines, involving four mosquito strains (BORA, BDG, TSK, TGR) and three age groups (5, 10, 15 days). The KAP analysis revealed high public awareness but limited translation into effective practices due to differing perceptions and low personal responsibility for dengue prevention. Natural-based repellents were preferred, scoring 3.40 out of 5, with WTP ranging from IDR 20,000–40,000. However, only synthetic repellents containing DEET provided 90% protection for six hours, while natural-based repellents offered less than 60% protection in the first hour. Strain variation significantly affected repellency, with TSK showing the highest repellency, while BORA and BDG exhibited similar trends. Although 10-day-old mosquitoes were more sensitive to repellents, age variation did not consistently influence repellency. These findings highlight the need for improved education campaigns, tailored repellent formulations, and localized testing to enhance public protection against mosquito bites and dengue transmission.
Decrease in the resistance level of Blattella germanica (Linnaeus) (Blattodea: Ectobiidae) to insecticides after being reared without selection pressure for ten years: Penurunan tingkat resistensi Blattella germanica (Linnaeus) (Blattodea: Ectobiidae) terhadap insektisida setelah dipelihara tanpa tekanan seleksi selama sepuluh tahun Dini, Putik Van; Hariani, Nova; Yusmalinar, Sri; Jane, Erfanus; Ahmad, Intan
Jurnal Entomologi Indonesia Vol 20 No 1 (2023): March
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.20.1.40

Abstract

This study aims to investigate changes in resistance to insecticides over a ten-year period in five strains of German cockroaches, Blattella germanica (Linnaeus), which had previously shown resistance to deltamethrin, propoxur, and fipronil in 2012. The five strains were reared in a laboratory without exposure to insecticides for ten years. In 2022, they were tested for resistance to the same insecticides using a topical application method. The resistance ratio (RR50) was calculated for each strain to determine the level of resistance to each insecticide. The study found that German cockroaches, initially resistant, became less resistant or even susceptible after being reared in a laboratory without insecticide exposure for over ten years. This decrease in resistance was observed in all strains, but the reduction pattern varied, apparently influenced by the type of insecticide.  For instance, the MDN2 strain, which initially had a very high level of resistance (RR50: 1019.74 -fold) to deltamethrin, became susceptible (RR50: 1 -fold). Similarly, the ACH2 strain, initially classified as highly resistant to propoxur (RR50: 48.64 -fold), and the strain with high resistance (RR50: 12.21 -fold) to fipronil, both became susceptible. The study also discussed potential mechanisms for the decrease in resistance, including reduced frequency of resistance genes and fitness costs. The findings suggest that rearing German cockroaches in a laboratory without insecticide treatment can lead to a decrease in resistance to commonly used insecticides. These findings can be used to develop more effective methods for controlling German cockroaches.
Tailoring larval diets and sugar sources to enhance development and adult survivorship of Culex quinquefasciatus (Say) (Diptera: Culicidae): Penyesuaian pakan larva dan sumber gula untuk meningkatkan perkembangan dan kelangsungan hidup Culex quinquefasciatus (Say) (Diptera: Culicidae) dewasa Alfiani, Rahmidevi; Dherika; Zuhri, Ahmad Syafiq; Firdaus, Ainur Subhan; Rachma, Saila; Samiaji, Muhammad Arya Rizqi; Pramurdya, Yesika Nanda; Yusmalinar, Sri; Ahmad, Intan
Jurnal Entomologi Indonesia Vol 22 No 3 (2025): November
Publisher : Perhimpunan Entomologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5994/jei.22.3.177

Abstract

Culex quinquefasciatus (Say) (Diptera: Culicidae)  is a primary vector of lymphatic filariasis and various encephalitis viruses, posing significant public health threats. Optimizing mass-rearing protocols for this mosquito species, particularly through improved nutritional strategies, is crucial for enhancing vector control effectiveness and efficiency. This study evaluates the effects of larval diet composition and adult sugar diet on the development and survivability of C. quinquefasciatus. Larvae were fed five diets based on combinations of protein-rich dog food (DF) and carbohydrate-rich rice flour (RF): 100% DF, 100% RF, DF:RF (3:1), DF:RF (1:1), and DF:RF (1:3). Adult mosquitoes were provided with 10% sucrose, 10% dextrose, or 10% honey. Observed parameters included larval and pupal morphometry, pupation time and rate, adult wing length, and adult survival over 50 days. The results showed that the DF:RF (1:1) diet yielded optimal larval length, pupation rate, and adult female wing length, whereas the DF:RF (3:1) diet resulted in the shortest pupation time and largest larval width. The combination of the DF:RF (1:1) diet and honey was the most effective in promoting adult development and survival. These findings provide valuable insights for optimizing mass-rearing protocols, which are essential for research and vector control programs.
Co-Authors Alfiani, Rahmidevi Dherika Dini, Putik Van Firdaus, Ainur Subhan Intan Ahmad Jane, Erfanus Nova Hariani Pramurdya, Yesika Nanda Rachma, Saila Riska Amalia Samiaji, Muhammad Arya Rizqi Zuhri, Ahmad Syafiq