The success and popularity of Long Lasting Insecticidal net (LLIN) campaigns combined with the agricultural use of insecticides has contributed to the emergence of pyrethroid insecticide resistance among mosquito populations in Africa and other malaria endemic countries. Olyset Plus is the ‘bite-back’ solution with enhanced knockdown and kill against pyrethroid-resistant mosquitoes.
Olyset Plus is a durable polyethylene net containing 2% permethrin combined with 1% of the synergist PBO (piperonyl butoxide), which is incorporated into all the fibres on each side including the roof. Using patented slow-release technology, the net fibres release the two ingredients at a constant ratio of 2:1, ensuring optimum efficacy against mosquitoes, including those that are resistant, in even the toughest conditions.
For more information on insecticide resistance please visit Insecticide Resistance Action Committee’s (IRAC) guidance on ‘Prevention and Management of Insecticide Resistance In Vectors of Public Health Importance’
Distribution of pyrethroid resistance in Africa using data collected between 2000 to 2010
Due to the excellent results from LLIN campaigns the adoption of pyrethroid treated nets as a key intervention in the battle against malaria has reached new heights. In many endemic countries, usage had reached 80% by 2011. Yet the pressure of using a single class of insecticides, pyrethroids, in all LNs as well as for Indoor Residual Spraying and agriculture has resulted in insecticide resistance in many parts of the world, particularly in Africa.
Reference: Ranson et al, Trends in Parasitology, Feb 2011, Vol 27, No.2
Olyset Plus is the first and only net on the market to incorporate PBO into every fibre and all surfaces of the net, providing enhanced knockdown and kill against pyrethroid-resistant mosquitoes.