How long does it take for commercial sprays to kill bedbugs?


This is a pretty vague question, so I’ll give the best estimates that I can. First, sprays are broken down into two categories: contact sprays kill right away and then evaporate, while residual sprays work more slowly but last a long time. The actual time it takes to kill bed bugs will depend on which type of spray you’re using, as well as on the active ingredients in that spray.

Most contact sprays will kill bed bugs in just seconds. This is assuming that the bug isn’t from a strain that is resistant to the active ingredient that your spray uses. This is a growing problem, so make sure that you’re using professional-strength chemicals with the latest formulas. Avoid grocery store brands at all costs; these are often using outdated formulas.

Residual sprays won’t kill bed bugs immediately, as they’re meant to be laid down in a perimeter and kill bed bugs that pass through the area over a long period of time. Depending on the individual spray, and the conditions of where it was used, a residual insecticide could be effective for anywhere from two weeks to over a year. The time from exposure to death will also vary - some sprays can kill exposed bed bugs in under a minute, while others take several minutes to work.

Written by at Bed Bug Supply.

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