PT 565 Plus XLO Aerosol Insecticide (also known as Prescription Treatment (PT) 565 Plus XLO), manufactured by BASF, is a low odor aerosol insecticide that quickly kills insects like spiders and gnats on contact. With its low odor and non-residual effects, it can be sprayed into cracks, crevices, voids, and as a space spray application for a broad range of flying and crawling pests. As a pressurized non-residual insecticide it will enhance insect control in sensitive areas such as commercial areas. PT 565 Plus XLO Aerosol Insecticide is a professional aerosol insecticide that provides a quick knockdown of pests through the use of natural pyrethrins 0.5% and two powerful synergists Piperonyl butoxide 1.0%, and n-Octyl Bicycloheptene Dicarboximide 1.0%. Based on the pyrethrins from an organic compound derived from the Chrysanthemum flower effects the pests central nervous system. While also acting as an irritant to flush pests deep within cracks. In addition the two potent synergists helps to boost the natural power of the pyrethrins for total indoor and outdoor insect control. PT 565 Plus XLO Aerosol is a ready-to-use pesticide spray that kills over 35 type of insects in residential and commercial areas. This multi-use aerosol insecticide can be applied in various application methods from contact kill to flushing insects like cockroaches from cracks and crevices.