As you are aware, honey bees have been suffering from something called colony collapse disorder. In practice what this means is that the bees simply vanish from their hives leaving behind their most precious worldly possessions, honey and larvae.
Killing off organisms in an ecosystem using indiscriminate biocides is quite literally a slow form of suicide for us humans. As within, so without. You cannot poison and kill of the world around you without poisoning and killing yourself.
Simply put: We are killing ourselves. And the data is literally horrifying.