A number of studies have demonstrated that high frequency sounds do not repel mosquitos. This bit of folklore probably came about between the presence of bats, of which some species are prodigious eaters of mosquitos, and the assumption that the high frequency echo location of bats was responsible for the reduced numbers of mosquitos in a area. They were actually concentrated in the bat's stomachs.
After seeing your question, I decided to do a bit of research on the topic.
"Mosquito repellents that emit high-pitched sounds don't prevent bites"
Some key-points from the webpage:
A Cochrane Systematic Review of the use of electronic mosquito repellents (EMRs) failed to find any evidence that they work.To test these claims a team of Cochrane Researchers conducted a systematic review looking for trials conducted with EMRs. They located ten field trials that had been carried out in various parts of the world. None of these trials showed any evidence that EMRs work.All ten studies found that there was no difference in the number of mosquitoes found on the bare body parts of the human participants with or without an EMR
A number of studies have demonstrated that high frequency sounds do not repel mosquitos. This bit of folklore probably came about between the presence of bats, of which some species are prodigious eaters of mosquitos, and the assumption that the high frequency echo location of bats was responsible for the reduced numbers of mosquitos in a area. They were actually concentrated in the bat's stomachs.
After seeing your question, I decided to do a bit of research on the topic.
"Mosquito repellents that emit high-pitched sounds don't prevent bites"
Some key-points from the webpage:
A Cochrane Systematic Review of the use of electronic mosquito repellents (EMRs) failed to find any evidence that they work.To test these claims a team of Cochrane Researchers conducted a systematic review looking for trials conducted with EMRs. They located ten field trials that had been carried out in various parts of the world. None of these trials showed any evidence that EMRs work.All ten studies found that there was no difference in the number of mosquitoes found on the bare body parts of the human participants with or without an EMR
