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Que vaut vraiment la lampe Anti Moustique à UV?

Publié le 17/06/2013

Que vaut vraiment la lampe Anti Moustique à UV ? ?

 

La lampe anti moustique à UV est un produit très courant et à prix abordable. Est-il efficace contre nos meilleurs ennemis Culicidae ? Presque pas contre certaines espèces, et pas du tout contre d'autres ! Par contre, ces lampes ramassent à la pelle les moucherons et les pauvres papillons de nuit ...?

 

 

 

 

 

 

 

 

 

 

Plusieurs études - cf refs ci-dessous - ont démontré que ces dispositifs ne capturent qu'une proportion infime de moustiques, par rapport à d'autres insectes volants :


- en 1996, une étude? à l'Université du Delaware : sur 14000 insectes volants tués, 31 moustiques comptabilisés ?!

- en 1997, une étude du Laboratoire d'entomologie de Floride :  sur 10000, seuls 8 sont des moustiques,

 

etc, etc, ... toutes les études démontrent que la proportion de moustiques atteint rarement les 2 ou 4 % de captures !

Et nombre de ces insectes capturés sont considérés comme "utiles". Quel déchet !

 

Et ce n'est pas tout : vis à vis de certaines espèces de moustiques, ces appareils sont parfaitement inopérants ! En effet, la stratégie de ces lampes repose sur l'attractivité de la lumière ultra violette, et toutes les espèces de moustiques n'y sont pas sensibles : en particulier, les moustiques Aedes, dont l'albopictus, dit le "Moustique Tigre", ignorent les lampes à UV !

 

Ainsi, ce dispositif est plus une "lampe anti insecte" qu'une "lampe anti moustiques", très efficace contre les papillons de nuit, les moucherons et quelques moustiques de zones humides du type "Culex", mais jamais contre le "Tigre" !

 

 

 

Références Etudes :


Research Proves Bug Zappers Are Ineffective for Killing Mosquitoes

In 1977, researchers from the University of Guelph conducted a study to determine how effective bug zapper products are at killing mosquitoes and reducing mosquito populations where they are used[1]. They collected dead insects from bug zappers in people's backyards, and found that just 4.1% of the insects killed in the bug zappers were female (and therefore biting) mosquitoes. That means a full 95.9% of the insects killed were not biting mosquitoes. The study also found the yards with bug zappers had higher numbers of female mosquitoes than those without bug zappers.

Notre Dame researchers conducted a similar study in 1982, with similar results[2]. They tallied the kills from bug zappers in backyards in South Bend, Indiana, where mosquito populations were moderate to high. In an average night, a single bug zapper killed 3,212 insects, but only 3.3% of the dead insects were female mosquitoes. So almost 97% of the insects killed in these backyards were not biting mosquitoes. In addition, these researchers found that people in backyards with bug zappers were consistently more attractive to mosquitoes. The UV light seemed to draw more mosquitoes to those backyards, where the mosquitoes would then follow the carbon dioxide trail to their victims. The Notre Dame scientists noted that even when a bug zapper was kept on for 11 days, it failed to reduce the number of biting mosquitoes in the homeowner's backyard.

In 1996, researchers at the University of Delaware tallied an entire summer's worth of dead bugs from bug zappers in their study[3]. Of a total of 13,789 insects killed in the bug zappers, a paltry 0.22% of them were biting mosquitoes or gnats. Just 31 insects out of almost 14,000! This study took the research a step further, and reported the incidence of beneficial insects killed. Almost half of the dead insects (6,670, or 48.4%) were harmless, aquatic insects, important food for fish and other stream inhabitants. A significant number of beneficial predators and parasitic insects were also killed in the bug zappers (1,868, or 13.5%). These insects help control pest insect populations, meaning bug zappers could actually make pest problems worse.

Scientists at the UF/IFAS Florida Medical Entomology Laboratory in Vero Beach, FL, also examined the effectiveness of bug zappers in 1997[4]. A single bug zapper in their study killed 10,000 insects in one night, but just 8 of the dead bugs were mosquitoes.


1Surgeoner, G. A., and B. V. Helson. 1977. A field evaluation of electrocutors for mosquito control in southern Ontario. Proc. Entomol. Soc. Ontario 108:53-58.

2Nasci, RS, CW. Harris and CK Porter. 1983. Failure of an insect electrocuting device to reduce mosquito biting. Mosquito News. 43:180-184.

3Frick, TB and DW Tallamy. 1996. Density and diversity of nontarget insects killed by suburban electric insect traps. Ent. News. 107:77-82.

4 University Of Florida, Institute Of Food & Agricultural Sciences, 1997. "Snap! Crackle! Pop! Electric Bug Zappers Are Useless For Controlling Mosquitoes, Says UF/IFAS Pest Expert" Accessed September 4, 2012.


Source : About.com Insects?


 

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