Birds, insects, spiders, etc would probably benefit a lot more from humans no longer needing to spray insecticide to control mosquitoes. And mosquitoes would s

Birds, insects, spiders, etc would probably benefit a lot more from humans no longer needing to spray insecticide to control mosquitoes. And mosquitoes would still exist -- just not the species that are regionally eradicated because they spread diseases (and many of which are invasive species such as Aedes aegypti).