{"id":437840,"date":"2022-05-30T15:27:04","date_gmt":"2022-05-30T18:27:04","guid":{"rendered":"https:\/\/revistapesquisa.fapesp.br\/?p=437840"},"modified":"2022-05-30T15:27:04","modified_gmt":"2022-05-30T18:27:04","slug":"mosquitoes-learn-to-avoid-poison","status":"publish","type":"post","link":"https:\/\/revistapesquisa.fapesp.br\/en\/mosquitoes-learn-to-avoid-poison\/","title":{"rendered":"Mosquitoes learn to avoid poison"},"content":{"rendered":"<div id=\"attachment_437861\" style=\"max-width: 1150px\" class=\"wp-caption alignright\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-437861 size-full\" src=\"https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2022\/05\/012-017_Notas_314-6-1140.jpg-7-800.jpg\" alt=\"\" width=\"1140\" height=\"1605\" srcset=\"https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2022\/05\/012-017_Notas_314-6-1140.jpg-7-800.jpg 1140w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2022\/05\/012-017_Notas_314-6-1140.jpg-7-800-250x352.jpg 250w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2022\/05\/012-017_Notas_314-6-1140.jpg-7-800-700x986.jpg 700w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2022\/05\/012-017_Notas_314-6-1140.jpg-7-800-1091x1536.jpg 1091w, https:\/\/revistapesquisa.fapesp.br\/wp-content\/uploads\/2022\/05\/012-017_Notas_314-6-1140.jpg-7-800-120x169.jpg 120w\" sizes=\"auto, (max-width: 1140px) 100vw, 1140px\" \/><p class=\"wp-caption-text\"><span class=\"media-credits-inline\">James Gathany\u2009\/\u2009CDC<\/span>Female <em>A. aegypti<\/em> after a meal<span class=\"media-credits\">James Gathany\u2009\/\u2009CDC<\/span><\/p><\/div>\n<p>Disease-carrying insects can learn to avoid insecticides after being exposed just once to nonlethal doses, according to a group led by Frederic Tripet, an entomologist from Keele University in the UK. The researchers gave female specimens of <em>Culex quinquefasciatus<\/em>, commonly known as the southern house mosquito, and <em>Aedes aegypti<\/em>, which transmits malaria, dengue, and other diseases, low doses of insecticide before carrying out two experiments. In the first, the mosquitoes were released into a box and had to pass through a net laced with the poison to reach blood. Only 15.4% of <em>A. aegypti<\/em> and 12.1% of <em>C. quinquefasciatus<\/em> previously exposed to the insecticide passed through the screen to feed. The proportion was much higher among mosquitoes that had not previously had contact with the insecticide (57.7% and 54.4% respectively). In the second test, the insects were placed in a tunnel connecting two boxes: one that contained the insecticide and another that contained an inert compound. The result: 75.7% of <em>A. aegypti<\/em> and 83.1% of <em>C. quinquefasciatus<\/em> exposed to the insecticide flew to the box containing the harmless compound. In the group with no prior contact, the mosquitoes split 50\/50 between the two boxes. In both tests, the number of survivors was twice as high in the first group as in the second (<em>Scientific Reports<\/em>, February 17).<\/p>\n","protected":false},"excerpt":{"rendered":"Disease-carrying insects can learn to avoid insecticides after being exposed just once to nonlethal doses","protected":false},"author":475,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_exactmetrics_skip_tracking":false,"_exactmetrics_sitenote_active":false,"_exactmetrics_sitenote_note":"","_exactmetrics_sitenote_category":0,"footnotes":""},"categories":[1651],"tags":[259,229,260],"coauthors":[785],"class_list":["post-437840","post","type-post","status-publish","format-standard","hentry","category-notes","tag-chemistry","tag-epidemiology","tag-public-health"],"acf":[],"_links":{"self":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/437840","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/users\/475"}],"replies":[{"embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/comments?post=437840"}],"version-history":[{"count":3,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/437840\/revisions"}],"predecessor-version":[{"id":439150,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/posts\/437840\/revisions\/439150"}],"wp:attachment":[{"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/media?parent=437840"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/categories?post=437840"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/tags?post=437840"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/revistapesquisa.fapesp.br\/en\/wp-json\/wp\/v2\/coauthors?post=437840"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}