Dear Sónia, These little flies appear to be fruit flies, not mosquitoes. The adult females deposit their eggs in wet or moist organic materials. A single piece of fruit, forgotten on or in a desk drawer or left elsewhere, may generate many hundreds of adult flies. The drip trays and interior of the drain lines of beverage dispensers, such as coffee and soda machines, are often found to be small factories for fruit flies. The plumbing drains, themselves, are also likely candidates as production sites for flies.
To ascertain the source, invert a clear plastic or glass container over each drain at the end of the day. Then, see which container has flies the next morning. That usually offers a quick answer to the dilemma. Make sure you do this with the drains on beverage machines as well. Cleaning the organic material from the source is critical. Best wishes for your hunt for the solution to the problem. -Rich Richard J. Pollack, PhD HARVARD UNIVERSITY Environmental Health and Safety (EH&S) Senior Environmental Public Health Officer 46 Blackstone St. Cambridge, MA 02139 Office: 617-495-2995 Cell: 617-447-0763 www.ehs.harvard.edu [email protected]<mailto:[email protected]> ________________________________ From: [email protected] <[email protected]> on behalf of Sónia Casquiço <[email protected]> Sent: Monday, June 8, 2020 4:52 AM To: [email protected] <[email protected]> Subject: [PestList] FW: Hello everyone, I would like to ask you for help to solve a problem that our institution has had with the mosquitoes that I show you in annex. Last week we eliminated the deposition of all organic residues, but even so they continue to appear next to the coffee machine and in some rooms. How can we eliminate this parasite? Thank you so much for all the information and sharing, Best Regards, Sónia Casquiço Conservadora-Restauradora/Conservator-Restorer Fundação Calouste Gulbenkian Av. de Berna, 45A, 1067-001 Lisboa, Portugal t. (+351) 21 782 3453 [email protected]<mailto:[email protected]> gulbenkian.pt<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.gulbenkian.pt_&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=GO7C3XN3WgFy2IP-bFBbnUs_CYntqj57Dprtl40-_KE&m=d0_PLzSPA6p1PoBOpHNtLF4W86JF30PIN5SgK82zhEI&s=fII0SHOaVNs85HQopgSlAEGCcMICkqmiR4Swdj3QRx4&e=> [FCG_AssinaturaEmail_BibliotecaArquivos] From: Sónia Casquiço Sent: 8 de junho de 2020 09:38 To: Sónia Casquiço <[email protected]> Subject: Enviado do meu telemóvel Huawei. -- You received this message because you are subscribed to the Google Groups "MuseumPests" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/DB6P190MB0246EAA71077945E7CF643B1A9850%40DB6P190MB0246.EURP190.PROD.OUTLOOK.COM<https://urldefense.proofpoint.com/v2/url?u=https-3A__groups.google.com_d_msgid_pestlist_DB6P190MB0246EAA71077945E7CF643B1A9850-2540DB6P190MB0246.EURP190.PROD.OUTLOOK.COM-3Futm-5Fmedium-3Demail-26utm-5Fsource-3Dfooter&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=GO7C3XN3WgFy2IP-bFBbnUs_CYntqj57Dprtl40-_KE&m=d0_PLzSPA6p1PoBOpHNtLF4W86JF30PIN5SgK82zhEI&s=sDmzU5C4bPEQ8O6JdnwoUeQzrsq-pmvxtH0hiTwy8mo&e=>. -- You received this message because you are subscribed to the Google Groups "MuseumPests" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/pestlist/BL0PR07MB4132C901D075AEAB0AEBC33E94850%40BL0PR07MB4132.namprd07.prod.outlook.com.
