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experts say. That can involve multiple visits and can cost $1,000 or more. Environmental Protection Agency Region 5. there no single answer, he said. The government limits what kinds of pesticides can be used indoors because of the potential for harming people and pets, explains Miller, who also runs the Dodson Urban Pest Management Laboratory at Virginia Tech.Bedbugs are also hard to treat because they so good at hiding, she said. Their hiding places can be many and difficult to pinpoint, and they often include places that can be treated with insecticides.Bedbugs can move easily, which makes control especially problematic in shared housing, such as apartment buildings.Few lay people know enough about bedbug biology and behavior to control the pests effectively, said Tim McCoy, a research technician in Miller lab. What more, they don have access to more concentrated products and other methods pros can use.The products the public can buy legally, that is are minimally effective, Jones and McCoy said.Many use pyrethroids, a class of insecticides to which modern bedbugs have become highly resistant. Others are made from natural ingredients that are generally regarded as safe, so they exempt from federal regulation, Jones said. The natural products don have to undergo safety testing, she said, and their manufacturers don have to prove they work.Most products available to consumers have no effect at all once they dried, that the downfall, Jones said.The products are often labeled kill, on contact or some similar wording. That means the product will kill a bedbug only if it sprayed directly on the