Losing my thrill (on blueberry hill)

With apologies to Fats Domino for the title...

Back in the winter, I planted 50 blueberry bushes of four different varieties (blue chip, jersey, berkley, and croatan) from Finch nursery in North Carolina. All made it nicely through the winter but in the last month or so, I've lost nine of the ten blue chip variety. I've emailed the nursery to get more information and hopefully, some replacements.