Luc,
I originally was looking for an easy answer, "add lime, or add potash."
It seems a little more complex than that, after I read the garden web posts. The posting were very matter of fact with a "sometimes that happens." Maybe it's a characteristic of the plants to have a bitter year, and I suppose it's possible since all plants were planted at the same time, but 25% of the plants were gold raspberries, so I would think they wouldn't be the same as the other plants.
That leads me to think weather, water, or soil, but I don't have it figured out yet. I will be watching the rest develope and ripen. |