<b>Objective:</b> The objective is to<span "=""> compare a regular ovitrap versus an innovated larvitrap for monitoring <i>Aedes</i> spp. populations. <b>Materials an...<b>Objective:</b> The objective is to<span "=""> compare a regular ovitrap versus an innovated larvitrap for monitoring <i>Aedes</i> spp. populations. <b>Materials and Methods</b></span><b>:</b><span "=""> A total of 20 regular ovitraps and 20 innovated larvitraps were placed in pairs in 20 houses from the 5 de Febrero neighborhood in Tapachula, Chiapas, Mexico. The innovation consisted in the incorporation of a valve in the lower part of a half tire to drain the contents in a 2 L collection container. The evaluation was carried out during five weeks, collecting eggs and larvae from the ovitraps and innovated larvitraps, respectively. Positivity indexes and insectary production of adult <i>Aedes</i> spp. mosquitoes were compared by collection type. <b>Results</b></span><b>:</b><span "=""> Average positivity index for the five weeks period were 60% for ovitraps and 91.25% for innovated larvitraps. During the five weeks, 4043 <i>Ae.</i> <i>aegypti</i> and 703 <i>Ae.</i> <i>albopictus</i> adult mosquitoes were produced in the insectary from the eggs collected from ovitraps, while from innovated larvitraps were 9014 <i>Ae.</i> <i>aegypti</i>, 1205 <i>Ae.</i> <i>albopictus</i>, and 15 <i>Culex</i> spp. <b>Conclusion</b></span><b>:</b><span "=""> Collection by the innovated larvitrap was more efficient, collecting 3.56 times more <i>Ae.</i> <i>aegypti</i> than with ovitraps, using approximately the same effort in time for replacing the filter paper from traditional 1 L ovitraps. Since the logistics for the storage and placement of larvitraps may still be a disadvantage in comparison with ovitraps, their use could be specifically intended in sentinel sites for mosquito population monitoring for entomological surveillance purposes.展开更多
文摘<b>Objective:</b> The objective is to<span "=""> compare a regular ovitrap versus an innovated larvitrap for monitoring <i>Aedes</i> spp. populations. <b>Materials and Methods</b></span><b>:</b><span "=""> A total of 20 regular ovitraps and 20 innovated larvitraps were placed in pairs in 20 houses from the 5 de Febrero neighborhood in Tapachula, Chiapas, Mexico. The innovation consisted in the incorporation of a valve in the lower part of a half tire to drain the contents in a 2 L collection container. The evaluation was carried out during five weeks, collecting eggs and larvae from the ovitraps and innovated larvitraps, respectively. Positivity indexes and insectary production of adult <i>Aedes</i> spp. mosquitoes were compared by collection type. <b>Results</b></span><b>:</b><span "=""> Average positivity index for the five weeks period were 60% for ovitraps and 91.25% for innovated larvitraps. During the five weeks, 4043 <i>Ae.</i> <i>aegypti</i> and 703 <i>Ae.</i> <i>albopictus</i> adult mosquitoes were produced in the insectary from the eggs collected from ovitraps, while from innovated larvitraps were 9014 <i>Ae.</i> <i>aegypti</i>, 1205 <i>Ae.</i> <i>albopictus</i>, and 15 <i>Culex</i> spp. <b>Conclusion</b></span><b>:</b><span "=""> Collection by the innovated larvitrap was more efficient, collecting 3.56 times more <i>Ae.</i> <i>aegypti</i> than with ovitraps, using approximately the same effort in time for replacing the filter paper from traditional 1 L ovitraps. Since the logistics for the storage and placement of larvitraps may still be a disadvantage in comparison with ovitraps, their use could be specifically intended in sentinel sites for mosquito population monitoring for entomological surveillance purposes.
