The article has links to eight youtube videos. One cannot get better sources than that!
I’m not doing anything resembling science here, but when I see almost no fleas on our cats and a high reduction of mosquitoes despite a incredibly wet spring and early summer (with people in other parts of the city and county complaining loudly about the blood suckers), and I’ve been putting every flea and mosquito I can get a hold of in a remote….. Oh yeah, that’s the placebo effect alright!
Source: https://www.spooky2.com/forums/viewtopic.php?f=9&t=11115