2) mosquito repellent principle:
According to the data of long-term research on the living habits of mosquitoes by zoologists, only female mosquitoes will suck human blood and animal blood, because female mosquitoes need to be supplemented with nutrition to ovulate and give birth smoothly within one week after mating, and during this period, female mosquitoes can no longer mate with male mosquitoes, otherwise it will affect production and even worry about their lives. To put it simply, female mosquitoes will bite and suck blood after pregnancy, and what they are most afraid of at this time is the pursuit and mating of male mosquitoes.
At the same time, it includes the frequency of various male mosquitoes flying after female mosquitoes. When female mosquitoes hear the male mosquito frequency emitted by this mosquito repellent during pregnancy, they will escape from the sound range of this machine. /academy-note-559.html So I think you are right.