Edit: I see the study was conducted in Germany, but it has me wondering about the U.S. where I have (anecdotally) noticed a large decline as well. Are there la

Edit: I see the study was conducted in Germany, but it has me wondering about the U.S. where I have (anecdotally) noticed a large decline as well. Are there large enough areas of the country that you could control for areas that don't spray for mosquitos to see if the populations have also declined in those areas? It wouldn't surprise me at all to find out that the spraying over the last 10 years to control the mosquito population due to the media induced West Nile panic followed by zika panic has contributed to this.