Just two years ago, Dave Schuit’s honeybee hives were thriving and he was planning an expansion of the family business. But in the last year, an astounding 37 million of his bees in 600 hives have died and he doesn’t know if he’ll have any honey harvest at all this year.

Now, he’s joining a growing number of beekeepers across the country pointing the finger of blame at a group of pesticides they say needs to be banned.

For Schuit, last summer’s bee season started out well.