title: Environmentally friendly tool to control mosquito populations without risk of insecticide resistance: the Lehmann's funnel entry trap.
abstract: BACKGROUND
  Current malaria control strategies have cut down the malaria burden in many endemic areas, however the emergence and rapid spread of insecticide and drug resistance undermine the success of these efforts. There is growing concern that malaria eradication will not be achieved without the introduction of novel control tools. One approach that has been developed in the last few years is based on house screening to reduce indoor mosquito vector densities and consequently decrease malaria transmission. Here screening and trapping were combined in one tool to control mosquito populations. The trap does not require an insecticide or even an attractant, yet it effectively collects incoming resistant and susceptible mosquitoes and kills them.
  
  
  RESULTS
  Performance of the funnel entry trap was tested in low and high malaria vector density areas. An overall reduction of 70 to 80% of mosquito density was seen in both. Species and molecular forms of Anopheles gambiae identification indicated no variation in the number of Anopheles arabiensis and the molecular forms of An. gambiae between houses and traps. Mosquitoes collected in the traps and in houses were highly resistant to pyrethroids (0.9 kdr-based mechanism).
  
  
  CONCLUSIONS
  There is a global consensus that new intervention tools are needed to cross the last miles in malaria elimination/eradication. The funnel entry trap showed excellent promise in suppressing mosquito densities even in area of high insecticide resistance. It requires no chemicals and is self-operated.
authors.affiliation: Institut de Recherche en Sciences de la Santé/Centre Muraz, Bobo-Dioulasso, Burkina Faso. a_diabate@hotmail.com
authors.forename: Abdoulaye
authors.initials: A
authors.lastname: Diabaté
authors.forename: Etienne
authors.initials: E
authors.lastname: Bilgo
authors.forename: Roch K
authors.initials: RK
authors.lastname: Dabiré
authors.forename: Fréderic
authors.initials: F
authors.lastname: Tripet
mesh_terms: D000818:Animals; D000852:Anopheles / Q000145:classification / Q000187:drug effects / Q000502:physiology*; D006801:Humans; D007305:Insecticide Resistance; D007306:Insecticides / Q000494:pharmacology; D009032:Mosquito Control / Q000379:methods*; D011722:Pyrethrins / Q000494:pharmacology
chemical_list: D007306:Insecticides; D011722:Pyrethrins