Ah, right. Yes that's a considerably larger issue than the thread title, and its follow up question, suggests.
I don't think it is being overly alarmist to suggest that we are at some point along the curve of a mass extinction event. The interesting thing about this one is exactly that insects, usually quite resilient to these sort of things, are joining in.
Why this is so interesting is evident when you look at the last time the insects joined everyone else in dying so prodigiously, which was during the Permian extinction about 250m years ago. The interesting thing about
that extinction is that it wasn't so much of a BANG! but a whimper - taking place over the course of thousands, if not tens of thousands, of years.
The most likely cause was an extended period of volcanism that burned an immense area of habitat (sound familiar?), raised the acidity level of the oceans (sound familiar?), and released an huge amount of CO2 into the atmosphere, accelerating a 'greenhouse effect' that raised the temperature of the earth considerably (sound familiar?).
Also known as 'The Great Dying', it was the worst extinction event the Earth has - yet - experienced, and was the one that life on Earth took the longest to 'recover' from.
It's probably just a coincidence, or something.