Latin American Symposium
Latin American Symposium
Surveillance is the systematic collection, analysis, and interpretation of data essential for planning and implementing control activities. The lack of success in the control and surveillance of Ae. aegypti requires developing new accessible and effective strategies. This work aimed to develop and evaluate an adhesive and attractive trap for intra- and peri-domestic surveillance of Ae. aegypti. Based on a bibliographic review, linalool, lactic acid, hexanoic acid and ammonium chloride were identified as the compounds that present significant percentages of attraction for Ae. aegypti. We use the HITSS system and entomological cages to determine an effective attractant mixture. A sticky trap was designed to which the chosen mixture was incorporated and semi-field and field tests were carried out. In the HITSS system, mixture 2 (linalool 15%, lactic acid 10%, hexanoic acid 1%, and ammonium chloride 1%) presented the best percentage of attraction with 47.50 ± 4.80% and a Spatial Activity Index (SAI) of -0.45 ± 0.05. In entomological cages, mixture 2 presented the best attraction percentages with 15.8 ± 4.4% without fan use and 40.8 ± 6.3% with a fan. The capture percentages in the semi-field tests 24 hours after the first release were 8.9 ± 2.1% for the sticky trap alone; 21.6 ± 3.5% for mixture 2 and sticky trap; 43.2 ± 4.0% for the sticky trap, mixture 2 and fan; and 63.6 ± 11.1% for BG-Sentinel. In field tests mixture 2, sticky traps and the use of a fan captured 28 mosquitoes of Ae. aegypti in and 30 mosquitoes for BG-sentinel trap in a period of 7 days. In most Latin American countries, there is a lack of formal and accessible strategies to monitor adult populations of Ae. aegypti, so it is necessary to develop tools that reinforce entomological surveillance methods, such as the device designed in this work.