Often, bedbug bites are clustered along lines usually following arms and legs. Theories range from the idea that bedbugs are feeding along blood vessels to the idea that bedbugs remain with their bodies touching the bedding while they feed, and the bugs are left to feed only along lines where the skin is touching the bedding in just the right manner.
Many chemical pesticides are available, with more than 300 registered by the EPA. Pesticides should be applied to walls, floors, cracks in furniture, and seams and buttons of mattresses.21 The EPA’s Bed Bug Products search tool (Web site: http://cfpub.epa.gov/oppref/bedbug/) allows users to search by product name, company, EPA registration number, location of intended use, and pesticide type. The National Pesticide Information Center (Web site: http://npic.orst.edu/; telephone: 800-858-7378) is another useful resource. Silica gel dusts are a safer alternative to traditional pesticides, because they are less concentrated and less toxic.21 Plastic mattress and pillow encasements can help trap bedbugs and restrict spread.42 Regardless of the integrated pest management strategy used, a follow-up inspection 10 to 21 days after extermination is advised to detect and manage a persistent infestation.42
CrossFire Bed Bug Concentrate has two different active ingredients for dual modes of action (both a quick kill and residual activity). Mix 3 oz of CrossFire Insecticide with one gallon of water or 0.75 oz per quart (Remember to use what you mix-within 24 hours.) Adjust the spray pattern to a mist by turning the nozzle. A low fine mist is best for most spraying, but you may need to use a stream to get into some cracks and crevices. If you can't get into the cracks and crevices use one of the aerosols described below with it's crack and crevice tips to reach into these areas.
One bed bug will usually take more than one bite. Once a bed bug inserts its mouthparts and finds a suitable blood vessel, it will begin feeding. However, finding the right blood vessel may take more than one injection into the skin. In addition, bed bugs are very sensitive to movement by the host they are feeding on. Therefore, if a sleeping person moves, a feeding bed bug will probably withdraw its mouthparts and begin its search for a blood meal on another part of the body. It’s important to remember that the number of bites a person receives is not indicative of the number of bed bugs that feed on that person.