Strawberries and blueberries

I've been doing some research on how strawberries pollinate. If there is little to no wind, and the bees are not doing there job you should hand pollinate.
Also blueberries want acidic soil and I've read to add pine needles to cover the ground.

 3 weeks before picture below

they seem to be nice and bushy even after frost

This is what a frost bit flower looks like (black in the center)



This is what an un pollinated flower looks like. droopy and falling off.