Yes, Bifen IT can be used in a hose end sprayer. You will use 1 fl. oz. of solution and 5.5 ml of Nyguard IGR per gallon of water. You will put the concentrate directly into the cannister, and the tube will automatically use how much you have on the dial. It will disperse with each gallon that comes through the hose. You will need to be as accurate as possible when using this method. Please let us know if you have any additional questions.
Indoors, Bifen IT is only labeled to be used as a crack and crevice to baseboards, corners, storage areas, closets, around water pipes, doors and windows, behind and under refrigerators, cabinets, sinks, furnaces, stoves, the underside of shelves, drawers and similar areas. Bifen IT is great for outdoor control of Noseeums.
Along with vacuuming the carpeted areas daily, using a product called Microcare will provide you with a fast knockdown and kill flying insects which will give you immediate relief.
You can read our article on how to treat Noseeums here.