<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
Collecting eggs of Aedes （Stegomyia） albopictus （Skuse, 1894） （Diptera, ram. Culicidae）, i.e. Asian tiger mosquito was carded out in August 2016. Fourteen （14） ovitraps were placed at 3 different places： the ...Collecting eggs of Aedes （Stegomyia） albopictus （Skuse, 1894） （Diptera, ram. Culicidae）, i.e. Asian tiger mosquito was carded out in August 2016. Fourteen （14） ovitraps were placed at 3 different places： the area Banja Bansko （near Strumica）, Mrzenci （Gevgelija） and at the border crossing between Macedonia-Greece （Bogorodica）. During one month the ovitraps were exposed for two weeks, near the vegetation that mosquitoes use as resting places, also in the places where people are present and close to potted flower arrangements. The collected eggs from the ovitraps were returned to the Entomological laboratory of the P.H.O. Center for public health-Skopje and put in an entomological （hand-made） cage. Under the optimum moisture and temperature, after a few days the adults emerged. The determination of species was performed using a binocular magnifier. A total of 50 mosquitoes were collected, of those 23 were male Ae. albopictus and 27 were female Ae. albopictus. These examples were verified by prof. Dusan Petric and the Medical entomology laboratory at the Faculty of Agficul^tre Novi Sad （Republic of Serbia）. The presence of Ae. albopictus in the Republic of Macedonia was for the first time determined. We are now even more motivated to investigate and prove the presence of tiger mosquitos in other locations in Macedonia.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.
文摘Collecting eggs of Aedes （Stegomyia） albopictus （Skuse, 1894） （Diptera, ram. Culicidae）, i.e. Asian tiger mosquito was carded out in August 2016. Fourteen （14） ovitraps were placed at 3 different places： the area Banja Bansko （near Strumica）, Mrzenci （Gevgelija） and at the border crossing between Macedonia-Greece （Bogorodica）. During one month the ovitraps were exposed for two weeks, near the vegetation that mosquitoes use as resting places, also in the places where people are present and close to potted flower arrangements. The collected eggs from the ovitraps were returned to the Entomological laboratory of the P.H.O. Center for public health-Skopje and put in an entomological （hand-made） cage. Under the optimum moisture and temperature, after a few days the adults emerged. The determination of species was performed using a binocular magnifier. A total of 50 mosquitoes were collected, of those 23 were male Ae. albopictus and 27 were female Ae. albopictus. These examples were verified by prof. Dusan Petric and the Medical entomology laboratory at the Faculty of Agficul^tre Novi Sad （Republic of Serbia）. The presence of Ae. albopictus in the Republic of Macedonia was for the first time determined. We are now even more motivated to investigate and prove the presence of tiger mosquitos in other locations in Macedonia.
