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Video Q&A ViewAttendees 2

Medical, Urban, and Veterinary Entomology

Student Competition 10-Minute Paper

Grad MUVE: Diptera Biology and Control On-Demand Presentations

Light-emitting diodes (LED) and Fluorescent light traps for collecting urban night biting mosquitoes

On-Demand
Student Competition On-Demand

Background: Improved surveillance systems are required to facilitate the control program of vector borne diseases. Light traps have long been used to sample large numbers of insect species and regarded as a standard choice for baseline surveys of insects.

Methods: This study aimed to evaluate the efficacy of five ultraviolet light-emitting diodes (UV-LEDs), (LED365, LED375, LED385, LED395, LED405) and a fluorescent lights for trapping nocturnal mosquito species within Kasetsart University, Bangkok. Traps performed for 72 collection-nights were rotated between six locations, following the Latin square experimental design (LSD) in dry and wet seasons.

Results: A total of 6,929 adult mosquitoes were caught with the most predominant genus being Culex, followed by Aedes, Anopheles, Armigeres and Mansonia. Among Culex, Cx. quinquefaciatus (5,121: 73.9%) was the most abundant species followed by Cx. gelidus (1,134: 16.4%) and Cx. vishnui (21: 0.3%). Small number of Aedes, Armigeres, Anopheles mosquitoes was trapped Ae. albopictus (219: 3.2%), Ae. pocilius (137: 2.0%), Ar. subalbatus (97: 1.4%), An. vagus (70: 1.0%), Ae. aegypti (23: 0.3%). By traps, 2,582 specimens (37.2%) were captured from fluorescent light trap whereas 942 (13.6%), 934 (13.5%), 854 (12.3%), 820 (11.8%), and 797 (11.5%) were captured by LED375, LED405, LED395, LED365 and LED385, respectively.

Conclusion: All UV-LED light traps were not efficacious for sampling nocturnal mosquito species as compared to fluorescent light trap. The five UV-LED, LED-375 trapped the greatest number of mosquitoes. Additional field trials are and to assess the potential of LEDs to trap outdoor mosquitoes