Opravdu fungují alespoň některé repelenty?
Jak správně tušíte i ty nejlepší nikdy nefungují na 100%
Hlad je hlad a i hmyz se umí překonat.
Natož jak asi fungují ty nejhorší repelenty?
Tak pozor! Ty nejhorší někdy hmyz, který mají odpuzovat, naopak přitahují!
Jaký je nejlepší repelent proti komárům? Vědci provedli velký test!
cituji:
(Možná) Všichni výrobci (všeho) repelentů se zaklínají tím, že právě jejich zboží je nejúčinnější a nejbezpečnější. Je tomu ale skutečně tak?
Autoři článku publikovaného v Journal of Insect Science se rozhodli několika vybraným přípravkům podívat na zoubek. A jejich zjištění jsou všechno možné, jen ne potěšující: žádný z 11 testovaných repelentů neposkytoval 100% ochranu, a některé nefungovaly v podstatě vůbec.
Testy probíhaly tak, že návnada – člověk vybavený vybranými produkty – byla umístěna do aerodynamického tunelu u síťové klece s komáry tropickými (po větru). Odborníci následně zaznamenávali, zda je k ní obtížný hmyz přitahován, či zda je od ní naopak odpuzován ... Více na: https://vtm.zive.cz/clanky/jaky-je-nejlepsi-repelent-proti-komarum-vedci-provedli-velky-test/sc-870-a-194376/default.aspx
... Zdaleka nejefektivnější byl olej z tzv. citronového eukalyptu (korymbie citroníková, Eucalyptus citriodora) a diethyltoluamid. Obě jmenované látky snížily zájem moskytů o návnadu o cca 60 %. Z nositelných odpuzovačů pak stojí za zmínku jen nebulizér OFF! Clip-on Metofluthrin ... Více na: https://vtm.zive.cz/clanky/jaky-je-nejlepsi-repelent-proti-komarum-vedci-provedli-velky-test/sc-870-a-194376/default.aspx
více zde
Aedes aegypti is the principal vector for Zika, chikungunya, yellow fever, and dengue, worldwide and responsible for historic and ongoing outbreaks of these arboviral diseases (Gubler 2004). The geographical distribution of Ae. aegypti has expanded significantly over the last two decades (Jansen and Beebe 2010). This species can be found in many regions across the world, including the Americas. This species has successfully established populations across the United States southern border (Jansen and Beebe 2010, Joy et al. 2012). Zika virus is the latest of these arboviruses to invade the Americas (Fauci and Morens 2016). It has established itself in Brazil and spread explosively from there (Saiz et al. 2016). In June of 2016, the first autochthonous transmission within the United States was reported from Miami Dade County in Florida. Zika infection causes mild symptoms in about 18% of the infected patients, but has been linked to debilitating developmental defects in infants (Mlakar et al. 2016, Rubin et al. 2016).
The impending threat of Zika outbreaks in North America has created a massive public interest in mosquito control products and there are thousands of products currently commercially available. A search on www.amazon.com using the keywords “mosquito repellent” gained 13,333 hits on 16 August 2016. Putative repellents and mosquito control devices are presented to the consumer in several different ways including: spray-on repellents in pressurized spray bottles or diffusers, creams, repellent or insecticide-treated clothing, area repellents like candles and live plants that are rich in essential oils. There is also an abundance of wearable devices that are available, including: bracelets, sonic devices, clothing, and skin patches (Debboun and Strickman 2013).
There have been several studies that have shown an association between the use of personal protection products and a reduction in mosquito bites and disease incidence (Debboun and Strickman 2013). For example, permethrin-treated military clothing has shown to be effective in significantly reducing mosquito bites in the covered regions (Schreck and Kline 1989). Application of the repellent DEET to ankles and feet of the population in an African village significantly reduced the incidence of malaria (Durrheim and Govere 2002). Repellent soaps that contain DEET and permethrin have been shown to successfully reduce malaria infections (Kroeger et al. 1997, Kroeger et. al., 1999). Permethrin treated clothing has also been shown to reduce malaria incidence (Rowland et al. 1999). A double blind study concluded that the use of oil of lemon eucalyptus as repellent helps preventing malaria infections (Hill et al. 2007, Maia and Moore 2011).
The efficacy of different spray-on repellents on various species of mosquitoes has been tested in numerous studies (Fradin and Day 2002). We have shown in a previous study using a Y-tube olfactometer that the spray-on repellents DEET and oil of lemon eucalyptus (active ingredient p-menthane-3,8-diol [PMD]) are effective in repelling Ae. aegypti and Aedes albopictus (Rodriguez et al. 2015). The transdermal Vitamin B1 patch did not show any significant reduction in attraction...
continue here: https://academic.oup.com/jinsectscience/article/17/1/24/2996380
komár
klíště
infekce
health
Jak správně tušíte i ty nejlepší nikdy nefungují na 100%
Hlad je hlad a i hmyz se umí překonat.
Natož jak asi fungují ty nejhorší repelenty?
Tak pozor! Ty nejhorší někdy hmyz, který mají odpuzovat, naopak přitahují!
Jaký je nejlepší repelent proti komárům? Vědci provedli velký test!
cituji:
(Možná) Všichni výrobci (všeho) repelentů se zaklínají tím, že právě jejich zboží je nejúčinnější a nejbezpečnější. Je tomu ale skutečně tak?
Autoři článku publikovaného v Journal of Insect Science se rozhodli několika vybraným přípravkům podívat na zoubek. A jejich zjištění jsou všechno možné, jen ne potěšující: žádný z 11 testovaných repelentů neposkytoval 100% ochranu, a některé nefungovaly v podstatě vůbec.
Testy probíhaly tak, že návnada – člověk vybavený vybranými produkty – byla umístěna do aerodynamického tunelu u síťové klece s komáry tropickými (po větru). Odborníci následně zaznamenávali, zda je k ní obtížný hmyz přitahován, či zda je od ní naopak odpuzován ... Více na: https://vtm.zive.cz/clanky/jaky-je-nejlepsi-repelent-proti-komarum-vedci-provedli-velky-test/sc-870-a-194376/default.aspx
... Zdaleka nejefektivnější byl olej z tzv. citronového eukalyptu (korymbie citroníková, Eucalyptus citriodora) a diethyltoluamid. Obě jmenované látky snížily zájem moskytů o návnadu o cca 60 %. Z nositelných odpuzovačů pak stojí za zmínku jen nebulizér OFF! Clip-on Metofluthrin ... Více na: https://vtm.zive.cz/clanky/jaky-je-nejlepsi-repelent-proti-komarum-vedci-provedli-velky-test/sc-870-a-194376/default.aspx
více zde
Efficacy of Some Wearable Devices Compared with Spray-On Insect Repellents for the Yellow Fever Mosquito, Aedes aegypti (L.) (Diptera: Culicidae)
Published: 16 February 2017
Journal of Insect Science, Volume 17, Issue 1, 1 January 2017, 24, https://doi.org/10.1093/jisesa/iew117
Aedes aegypti is the principal vector for Zika, chikungunya, yellow fever, and dengue, worldwide and responsible for historic and ongoing outbreaks of these arboviral diseases (Gubler 2004). The geographical distribution of Ae. aegypti has expanded significantly over the last two decades (Jansen and Beebe 2010). This species can be found in many regions across the world, including the Americas. This species has successfully established populations across the United States southern border (Jansen and Beebe 2010, Joy et al. 2012). Zika virus is the latest of these arboviruses to invade the Americas (Fauci and Morens 2016). It has established itself in Brazil and spread explosively from there (Saiz et al. 2016). In June of 2016, the first autochthonous transmission within the United States was reported from Miami Dade County in Florida. Zika infection causes mild symptoms in about 18% of the infected patients, but has been linked to debilitating developmental defects in infants (Mlakar et al. 2016, Rubin et al. 2016).
The impending threat of Zika outbreaks in North America has created a massive public interest in mosquito control products and there are thousands of products currently commercially available. A search on www.amazon.com using the keywords “mosquito repellent” gained 13,333 hits on 16 August 2016. Putative repellents and mosquito control devices are presented to the consumer in several different ways including: spray-on repellents in pressurized spray bottles or diffusers, creams, repellent or insecticide-treated clothing, area repellents like candles and live plants that are rich in essential oils. There is also an abundance of wearable devices that are available, including: bracelets, sonic devices, clothing, and skin patches (Debboun and Strickman 2013).
There have been several studies that have shown an association between the use of personal protection products and a reduction in mosquito bites and disease incidence (Debboun and Strickman 2013). For example, permethrin-treated military clothing has shown to be effective in significantly reducing mosquito bites in the covered regions (Schreck and Kline 1989). Application of the repellent DEET to ankles and feet of the population in an African village significantly reduced the incidence of malaria (Durrheim and Govere 2002). Repellent soaps that contain DEET and permethrin have been shown to successfully reduce malaria infections (Kroeger et al. 1997, Kroeger et. al., 1999). Permethrin treated clothing has also been shown to reduce malaria incidence (Rowland et al. 1999). A double blind study concluded that the use of oil of lemon eucalyptus as repellent helps preventing malaria infections (Hill et al. 2007, Maia and Moore 2011).
The efficacy of different spray-on repellents on various species of mosquitoes has been tested in numerous studies (Fradin and Day 2002). We have shown in a previous study using a Y-tube olfactometer that the spray-on repellents DEET and oil of lemon eucalyptus (active ingredient p-menthane-3,8-diol [PMD]) are effective in repelling Ae. aegypti and Aedes albopictus (Rodriguez et al. 2015). The transdermal Vitamin B1 patch did not show any significant reduction in attraction...
continue here: https://academic.oup.com/jinsectscience/article/17/1/24/2996380
komár
klíště
infekce
health
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