Surveillance of Aedes albopictus mosquitoes using BG traps (Biogents Sentinel Trap) in Tien Giang and Binh Duong provinces in 2022

Abstract

This study aimed to survey Aedes albopictus mosquitoes in My Tho City, Tien Giang Province, and Thu Dau Mot City, Binh Duong Province using BG traps. The study deployed 78 traps weekly in My Tho and 181 traps weekly in Thu Dau Mot, in 25 weeks. Results showed a total of 248,512 mosquitoes collected, with 118,144 individuals from My Tho and 130,368 individuals from Thu Dau Mot. The proportion of Aedes albopictus mosquitoes in My Tho was 3.94%, while in Thu Dau Mot it was 8.90%. Among the total 16,263 Aedes albopictus mosquitoes collected, 80.54% were females. The mosquito density in My Tho fluctuated slightly around 1.08-3.53 female mosquitoes/trap/week. In Thu Dau Mot, the density of female Aedes albopictus mosquitoes showed more significant fluctuations compared to My Tho, with densities of 1.19-4.25 female Aedes albopictus mosquitoes/trap/week. The positive BG trap rate in My Tho was 56.15%, and in Thu Dau Mot it was 60.99%. The study concludes that BG traps are effective for surveillance Aedes albopictus mosquitoes. However, proper trap management is crucial to optimize mosquito surveillance effectiveness. The study results provide a basis for more effective mosquito control and prevention in the future.