Indeed, insect population decline was the first cause that came to mind, and then I read: > In addition to habitat loss, pesticides may have taken a toll. Whi

Indeed, insect population decline was the first cause that came to mind, and then I read: > In addition to habitat loss, pesticides may have taken a toll. Which is also the main cause for insect population decline. I just cannot believe why governments still allow the use of pesticides, it is so damn wrong just for economic purpose.