We have 20 blueberry bushes at least 30 years old. They always produced wonderful blueberries until this year. There was a smaller than usual crop and sour - even the biggest darkest blue ones... We are in Buffalo, NY - we had good weather, rain and sun... our veggies are great but not the blueberries...
Our bushes are mulched with pine and fertilized with horse manure - which we have done for years !
Anyone else experience this?