4. ULTRA LOW VOLUME SPRAYING (ULV) ACCORDING TO WHO GUIDELINES, TH...

1.4.1. Ultra low volume spraying (ULV) According to WHO guidelines, the ultra-small particle volume (ULV) space spray method is the first common priority measure to intervene with an outbreak with fast time and low cost. Insecticides are sprayed in the form of a mist with a tiny volume of insecticide particles <50µm into the space so that the insecticide particles are suspended in the air for a period of time and stick to mosquitoes when flying or sitting. Fludora co-max is the first spatial spray product consisting of a mixture of two active ingredients of two different groups: flupyradifurone (butenolide group) and transfluthrin (pyrethroid group) with two other action mechanisms. This helps to increase effectiveness in killing mosquitoes, slow the development of insecticide resistance in mosquitoes. Developed by the Bayer CropScience company, fludora co-max is used in indoor and outdoor mosquito spraying [101].