Pulled the row covers off this morning.  Lots of dead blossoms and lots of new live blossoms.  Can't really estimate what percentage died in the freeze but it was considerable.  Took petiole samples for first analysis.  Yesterday my neighbor and I brought over two bee hives and placed near the field.  One brood chamber got bumped out of place while trailering and the bees got riled up.  They took a liking to my head and I got stung 2 or 3 times in my hair.